Reference no: EM132535833

1.If a projectile has twice the mass but the same initial velocity, what effect would this have on its the horizontal range of the projectile? Ignore air resistance.

2.When an archer fires an arrow at a target, should they aim directly at the bullseye? If not, where should they aim? Discuss whether your answer depends on the distance between the archer and the target.

3.Let up be the positive y-direction and down be the negative y-direction.

a) Is the acceleration of a projectile fired vertically upwards positive or negative or zero? Or does it vary over the trajectory? Explain your answer.

b) Is the acceleration of a projectile fired vertically downwards positive or negative or zero? Or does it vary over the trajectory? Explain your answer.

c) Is the velocity of a projectile fired vertically upwards positive or negative or zero? Or does it vary over the trajectory? Explain your answer.

d) Is the velocity of a projectile fired vertically downwards positive or negative or zero? Or does it vary over the trajectory? Explain your answer.

4.Ball A is thrown horizontally from the top of a tower at the same instant that an identical ball Ball B is dropped vertically. Ignore air resistance.

a) Which object will hit the ground first? Explain.

b) Which object is traveling faster when it hits the ground? Explain.

5.Would your answers to the previous question change if ball B was twice the mass of ball A? Why?