A stone is released from rest from a height of 60 m. How long does it take to hit the ground? 4.4 s

2.3 s

5.2 s

3.5 s

With steps please

Ben(55 kg) is standing on very slippery ice when junior(25kg) bumps into him. junior was moving at a speed of 8m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision .

Aturntable that spins at a constant 74.0 rpm takes 3.10 s to reach this angular speed after it is turned on. find its angular acceleration (in rad/s2), assuming it to be constant, and the number of degrees it turns through while speeding up.

Which of the following forces require physical contact? tension air resistance friction magnetic force applied force