A ball is thrown straight up with a speed of +50 m/s. What is the ball’s velocity at 7 seconds?
(A) 7 m/s (C) + 20 m/s
(B) 70 m/s (D) - 20 m/s
More Questions From This User See All
(A) 7 m/s (C) + 20 m/s
(B) 70 m/s (D) - 20 m/s
Copyright © 2024 1QUIZZ.COM - All rights reserved.
Answers & Comments
Verified answer
V1= V0 + a t
V1 is final velocity
V0 is initial velocity (50m/s)
a is acceleration ( gravity or 9.8m/s^2)
t is time (7 s)
Solve for V1
v = u - gt
v = 50 - 10 * 7
v = - 20 m/s
D) - 20 m/s
answer