Q. In a game of tug of war, one person pulls with force of 100 N to the left, and the other pulls with a force of 60 N to the right. What is the net force and direction of the net force and acceleration?
Q. A 25000 kg rocket ship accelerates upwards by reason of constant 1.25MH of thrust from its engine. A simple pendulum on the ship is observed to complete 100 full swings in 75 seconds. What is the length of string?