A parachutist bails out and freely falls 56 m. Then the parachute opens, and thereafter she decelerates at 1.7 m/s2. She reaches the ground with a speed of 3.2 m/s.
(a) How long is the parachutist in the air?
(b) At what height does the fall begin?

A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?

What’s #16 asking me and how do i solve it?

Four 5-gram blocks of metal are sitting out in the sun and absorb the same amount of heat energy. use the following specific heat capacity data to determine which block will increase its temperature the most.