You are standing on a cliff 200 feet high. How long will it take a rock to reach the ground if
a) you drop it?
b) you throw it downward at an initial velocity of 40 feet per second?
c) How far does therock fall in 2 seconds if you throw it downward with an initial velocity of 40 feet per second?

1. Suppose we roll a ball off a table, at a speed of 2.0 m/s. This means that the initial velocity is completely horizontal; there is no initial component of velocity in the vertical direction. The table is 1.3 meters high. (A) How much time does it take the ball to hitthe ground after leaving the table? (B) How far does the ba

(1) Evil Kneivel rides his motorcycle off the rim of the Snake River Canyon at a horizontal velocity of 52 meters per second. How far away from the edge will he have traveled in 0.29 seconds? NOTE: Assume he does not hit bottom.
(2) Evil Kneivel rides his motorcycle off the rim of the Snake River Canyon at a horizontal velocity

A stone of density 5g/cm^3 completely immersed in sea water is allowed to sink from rest. Calculate the depth to which the stone would sink in two seconds. Neglect effect of friction. Relative density of sea water = 1.025 and g = 980cm/s^2

4.) A car has an average speed of 80.0 km/h for one hour, then an average speed of 90.0 km/h for two hours during a three-hour trip What was the average speed for the three-hour trip?
5.) What is the acceleration of a car that moves from a speed of 5.0 m/s to a speed of 15m/s during a time of 6.0 s?
10.) An archer shoots a

If a rock is thrown upward with an initial velocity of 32 feet per second from the top of a 40-foot building, write the height equation. The formula is s = -16t^2 + v o t + s o.

A. What is the relationship between the radius andthevelocity of a rotating object?
B. What is the relationship between thevelocity of a rotating object andthe centripetal force exerted on it?
C. The Moon orbits Earth at a distance of about 3.84 × 10^8 m in a path that takes 27.3 days to
complete. What is the c

All boulders androcks (large enough not to be buffeted by air current) appear to take the same time to hit bottom. My conjecture, observes Galileo, leader of the team, is that there is a universal gravitational constant which affects all objects, large or small. Knowing, as he does, that if such a constant exists, call it g for