A ball is thrown from ground level vertically upwards with an initial velocity of vi. Draw a velocity-time graph of the ball’s motion. Consider collisions with the ground are absolutely elastic and neglect air resistance.
A bomber flies with a constant velocity of 50 m/s horizontally and wants to hit a target traveling 20 m/s (same direction) on a highway 1000 m below. What is the horizontal distance of the bomber from the target so that a bomb released from it will hit the target?
One stone is thrown upwards from a point on the ground with an initial velocity v1 and simultaneously another stone is dropped from a height. They reach the ground at the same instant. Compare the velocities which they have attained.
A ball falls from a height h = 100 m. Please find the average speed of its movement in the second half of the way. The initial velocity of the ball is zero and the gravitational acceleration is g = 9.8 m/s^2. The ball may be regarded as a point particle and air resistance neglected.
Is there any difference in the weight of a person on the equator and on the poles?