Author Question: An object is thrown downward with an initial (t = 0) speed of 10 m/s from a height of 60 m above the ... (Read 104 times)

Metfan725 · **on:** Jul 28, 2018

An object is thrown downward with an initial (t = 0) speed of 10 m/s from a height of 60 m above the ground. At the same instant (t = 0), a second object is propelled vertically upward from ground level with a speed of 40 m/s. At what height above the ground will the two objects pass each other?
a. 53 m
b. 41 m
c. 57 m
d. 46 m
e. 37 m

Question 2

A stone is thrown from the top of a building with an initial velocity of 20 m/s downward. The top of the building is 60 m above the ground. How much time elapses between the instant of release and the instant of impact with the ground?
a. 2.0 s
b. 6.1 s
c. 3.5 s
d. 1.6 s
e. 1.0 s