A loaded coaltruck is parked at the top of an inclined track. it breaks free and rolls down the incline accelerating uniformly where it collides with another stationary coal truck parked at the beginning of a 1 km stretch of horizontal track. the pair lock together and continue along the track until they come to a standstill. the attractive resisting force acting on the truck at the top of the incline is 450N and on the combined pair when they are traveling as one is 750N.
determine:

1 the potential energy of the stationary truck at the top of the incline.

2 the kinetic energy of the rolling truck at the bottom of the incline just before impact, and its velocity.

3 the average acceleration of the rolling truck and the time it took to roll down the incline.

4 the velocity of the locked-together trucks after impact on the horizontal track.

5 the kinetic energy of the locked-together trucks.

6 the distance the locked-together trucks would travel before coming to a standstill.

Question: The blades in a blender rotate at a rate of 7290 rpm. When the motor is turned off during operation, the blades slow to rest in 3.67 s. What is the angular acceleration as the blades slow down? The initial rotation is in the positive direction.

Q: "The blades in a blender rotate at a rate of 7290 rpm. When the motor is turned off during operation, the blades slow to rest in 3.67 s. What is the angular acceleration as the blades slow down? The initial rotation is in the positive direction."
The OTA's solution is attached. We both got an answer of 208 rad/s^2.

The period of a stone swung in a horizontal circle on a 2.00-m radius is 1.00 s.
a. What is its angular velocity in rad/s?
b. What is its linear speed in m/s?
c. What is its radial acceleration in m/s^2.

A wheel that is rotating at 33.3 rad/s is given an angular acceleration of 2.15 rad/s/s. Through what angle has the wheel turned when its angular speed reaches 72.0 rad/s?

A 5.0-m-diameter merry-go-round is initially turning with a 4.0 s period. It slows down and stops in 20 s.
a) Before slowing, what is the speed of a child on the rim? (in m/s)
b) How many revolutions does the merry-go-round make as it stops?

An 0.50 kg object is attached to one end of a spring, and the system is set into simple harmonic motion. The displacement x of the object as a function of time is shown in the drawing below. With the aid of this data, determine the following values.
(a) amplitude A of the motion
(b) angular frequency
(c) spring c

1. A car of mass 1000 kg moves with a speed of 50 m/s on a circular track of radius 100 m. What is the magnitude of its angular momentum (in kg.m^2/s) relative to the center of the racetrack?
2. A Body oscillates with simple harmonic motion along the x-axis. Its displacement varies with time according to the equation x=5 sin

Learning Goal: To understand the meaning of the variables that appear in the equations for rotational kinematics with constant angular acceleration.
Rotational motion with a constant nonzero acceleration is not uncommon in the world around us. For instance, many machines have spinning parts. When the machine is turned on or o

Question: Bar BDE is attached to two links AB and CD. Knowing that at the instant shown link AB rotates with a constant angular velocity of 3 rad/s clockwise, determine the acceleration (a) of point D, (b) of point E.
Please refer to attachment to see a diagram of this scenario.

Find the linear velocity of a point on the edge of a drum rotating 52 times per minute. The diameter of the wheel is 16.0in. Please show me all the steps thank you