A basketball with a mass of 0.5 kilograms is accelerated at 2 meters per second". The nat force acting on the mass is a. 2N
b. 0 N
c. 0.5 N
d. 1 N

Astone is dropped with no initial velocity from the top of a cliff and hits the ground a time of 3.9 s later. what is the height of the cliff, in units of meters? you may assume that air resistance is negligible. give the answer as a positive number question 15 a figure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 200 o 20.9 12000 o 3.33

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

Cathy is pedaling down a steep hill on her bicycle and wants to be able to coast up the next hill, which is 25 meters high, without pedaling. cathy and her bicycle have a mass of 75 kg. assuming her bicycle is 100% efficient, what would her speed have to be?