A rock is thrown vertically upward with a speed of 15 m/s. What are its speed...

Question

Question

A rock is thrown vertically upward with a speed of 15 m/s. What are its speed and direction 2 s later?

Answer 1

Answer #1

V= u+ at

0 = 15 - 9.8 t

t =1.53 s

Left time 2 - 1.53 = 0.469s

V= u +gt

V= 9.8 x 0.469 = 4.6 m/s =:5 m/s downward

Answer 2

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