pshysich
apply formula and calculations:
1.A ball is projected upward with an initial velocity of 10 m/s. It will reach its maximum height in ??? seconds
2.Ball A is thrown upward with a velocity of 19.6 m/s. Two seconds later ball B is thrown upward with a velocity of 9.8 m/s. Which ball is first to return to the
thrower’s hand?
3.The acceleration due to the Earth’s gravity, in English units, is 32 ft/s2. In the absence of air friction, a ball is dropped from rest. Its speed on striking the
ground is exactly 132 ft/s. From what height was the ball dropped?
4.The acceleration due to the Earth’s gravity, in English units, is 32 ft/s2. In the absence of air friction, a ball is dropped from rest. Its speed on striking the
ground is exactly 132 ft/s. From what height was the ball dropped?
5.After 1 second, a ball dropped from rest will have fallen
6.Suppose you throw a ball vertically downward with a speed of 10 m/s. Neglecting air friction, what would be the speed of the ball one second later?
