Block Up Ramp
A 5-lb block is given an initial velocity of 10 ft/s up a 45 degree smooth slope. Determine the time it will take to travel up the slope before it stops.
A 5-lb block is given an initial velocity of 10 ft/s up a 45 degree smooth slope. Determine the time it will take to travel up the slope before it stops.
Please do not place your response in a .pdf or .cdx format, but Word documents are okay. Thanks! Please see attached for actual problem.
The 2-lb brick slides down a smooth roof, such that when it is at A it has a velocity of 5ft/s. Determine the speed of the block just before it leaves the surface at B, the distance d from the wall where it strikes the ground, and the speed at which it hits the ground.
A girl has a mass of 40kg and center of mass at G. If she is swinging to a maximum height defined by theta = 60 deg, determine the force developed along each of the four supporting posts such as AB at the instant theta = 0 deg. The swing is centrally located between the posts. *See attachment for diagram.
Here's the problem: Two children, Ferdinand and Isabella, are playing with a water hose on a sunny summer day. Isabella is holding the hose in her hand 1.0 meters above the ground and is trying to spray Ferdinand, who is standing 10.0 meters away. To increase the range of the water, Isabella places her thumb on the hose hole
Just before it is struck by a racket, a tennis ball weighing 0.560 N has a velocity of (20.0i-4.0j) m/s. During the 3.00 ms that the racket and ball are in contact, the net force on the ball is constant and equal to (-380i+110j)N. What is the x-component of the impulse of the net force applied to the ball? What is the y-componen
Jonathan and Jane are sitting in a sleigh that is at rest on frictionless ice. Jonathan's weight is 800 N, Jane's weight is 600 N, and that of the sleigh is 1000 N. They see a poisonous spider on the floor of the sleigh and immediately jump off. Jonathan jumps to the left with a velocity (relative to the ice) of 5.00 m/s at 30 d
A steel ball with mass 38.0 g is dropped from a height of 1.93 m onto a horizontal steel slab. The ball rebounds to a height of 1.56 m .Calculate the impulse delivered to the ball during impact. If the ball is in contact with the slab for a time of 2.40 ms, find the average force on the ball during impact.
Blocks of mass m and 2m are positioned on a semicircular frictionless track at a height of R/4 above the lowest point. The blocks are released simultaneously and collide elastically. How high does each block rise after the collision?
A rocket with initial mass of 8.0 x 10^3 kg is fired vertically. Its exhaust gases have a relative velocity of 2.5 x 10^3 m/s and are ejected at a rate of 40 kg/s. a) What is the initial accerleration of the rocket? b) What is the acceleration after 20s have elapsed?
Please do not place your response in a .pdf or .cdx format, but Word documents are okay. Thanks! Please see attached for actual problem.
A 1kg solid cylinder of radius 2cm is connected to a Hookes' law spring (k=100 N/m). The cylinder is displaced 20cm to the left and released. The cylinder rolls without slipping. Find the maximum velocity of the cylinder's center of mass.
The boy of mass 40kg is sliding down the spiral slide at a constant speed such that his position, measured from the top of the chute, has components r=1.5m, theta=(0.7t)rad, and z=(-0.5t)m, where t is in seconds. Determine components of force: F(subscript r), F(subscript theta), and F(subscript z) which the slide exerts on him a
Two planes A and B are flying side by side at a constant speed of 900km/h. Maintaining this speed, plane A begins to travel along the spiral path r = (1500*theta) km, where theta is in radians, whereas plane B continues to fly in a straight line. Determine the speed of plane A with respect to plane B when r=750km.
Two planes A and B are flying side by side at a constant speed of 900km/h. Maintaining this speed, plane A begins to travel along the spiral path r = (1500*theta) km, where theta is in radians, whereas plane B continues to fly in a straight line. Determine the speed of plane A with respect to plane B when r=750km.
A pendulum of mass M is attached to a string of length L. The other end of the string is attached to pivot point P. The string and mass are held horizontal and released so that the mass swings down. When the mass is at its lowest point, the string hits a nail a distance h above the mass, so that the mass loops around the nail. W
A hockey stick of mass m_s and length L is at rest on the ice (which is assumed to be frictionless). A puck with mass m_p hits the stick a distance D from the middle of the stick. Before the collision, the puck was moving with speed v° in a direction perpendicular to the stick. The collision is completely inelastic, and the pu
A man is deer hunting by a cliff that is 1000.0 m tall. He fell asleep while hunting and woke up at night. He decided to shoot off a few rounds to try and get the attention of someone. If he aims 65 degrees above the horizontal and fires a bullet that leaves his gun at 410.00 m/s over the cliff how long will the bullet rise? Ho
Problem 1: A box of mass M is held against the ceiling by a force P acting at an angle (SYMBOL1) as shown. The block slides along the ceiling to the right at a constant speed. The coefficient of kinetic friction between the box and the ceiling is (SYMBOL2). (a) Draw a labled free body diagram for the box (b) Determine the f
Please do not put your response in a .pdf format, but Word documents are okay. Thanks! A long, thin rod of mass M and length L is standing straight up on a table. Its lower end rotates on a frictionless pivot. A very slight push causes the rod to fall over. (A) As it hits the table, what is the angular velocity of the tip
A uniform board of mass m and length L is pivoted on one end and is supported in the horizontal position by a rope attached to the other end. Another rope, attached to the board a distance L/3 from the pivot point, is being pulled straight down with a constant force of magnitude F. Suddenly, the rope attached to the end of the
When a toy car is rapidly scooted across the floor, it stores energy in a flywheel. The car has mass 0.180g, and its flywheel has a moment of inertia of 4.00*10^(-5)kg.m^2. The car is 15.0cm long. An advertissement claims that the car can travel at a scale speed of up to 700km/h (440mi/h). The scale speed is the speed of the toy
Please do not put your response in a .pdf format, but Word document are okay. Thanks! A sled of mass m is being pulled horizontally by a constant horizontal force of magnitude F. The coefficient of kinetic friction is mu_k. During time interval t, the sled moves a distance s, starting from rest. Find the average velocity v_av
A Steel pile is driven a distance (d) into the ground by a hammer of mass (M) 450kg, dropped from a height (h) of 3.25m above the top of the pile. The mass of the pile (m) is 40kg and the average resistance of the ground to penetration (Fr) is 45kN. Calculate: a. The velocity and the kinetic energy of the hammer immediatel
A spaceship of mass 2.3*10^6 kg is cruising at a speed of 4.4*10^6 m/s when the antimatter reactor fails, blowing the ship into three pieces. One section, having a mass of 5.1*10^5 kg, is blown straight backward with a speed of 2.1*10^6 m/s. A second piece, with mass 7.6*10^5 kg, continues forward at 1.1*10^6 m/s. What is the sp
Please see the attached file for full problem description.
Answer on #3 is the circled one, why. Explain each step of the curve or line, etc as it starts from zero to the end. Also tell me what the other curves represent. Tell when acceleration is 0, maximum, and whatever else. Do the same with velocity too? Also, on the circled answer some writing is inside saying-9.8, etc. Just
A 160 kg hockey puck is moving on a icy, frictionless, horizontal surface. at t=0 the puck is moving to the right at 3m/s 1) Calculate the velocity of the puck(magnitude and direction) after a force of 25N directed to the right has been applied for 0.050s 2)If instead, a force of 12N directed to the left is applied from t=0 t
A baseball has mass 0.145.kg 1) if the velocity of a pitched ball has magnitude 45m/s and the batted ball's velocity is 55m/s in the opposite direction, find the magnitude of the change in momentum of the ball and the impulse applied to it by the bat. b) If the ball remains in contact with the bat for 2.00ms, find the magnitu
An object is thrown horizontally from the top of a building at a height of 32.5 m above the ground, it hits the ground 65m from the base of the building. What is the initial speed? What is the velocity just before it hits the ground?