(a) Its instantaneous velocity at t = 10.0s is 0.4m/s.
(b) Its instantaneous velocity at t = 30.0s is 0.5 m/s.
(c) Its average velocity between t = 0 and t=5.0s is 0.6 m/s.
(d) Its average velocity between t = 25.0s and t=30.0s is 1.4 m/s.
(e) Its average velocity between t=40.0s and t=50.0s is -1 m/s.
What is instantaneous velocity?
Instantaneous velocity is defined as the velocity of an object under motion at a specific point of time.
instantaneous velocity at t=10.0s
at time, t = 10 seconds, x = 4 m
v = 4 m / 10 s = 0.4 m/s
instantaneous velocity at t=30.0s
at time, t = 30 seconds, x = 15 m
v = 15 m / 30 s = 0.5 m/s
average velocity between t=0 and t=5.0s
v(avg) = Δx / Δt
v(avg) = (3 - 0)/(5 - 0) = 0.6 m/s
average velocity between t=25.0s and t=30.0s
v(avg) = Δx / Δt
v(avg) = (15 - 8)/(30 - 25) = 1.4 m/s
average velocity between t = 40.0s and t = 50.0s
v(avg) = Δx / Δt
v(avg) = (10 - 20)/(50 - 40) = -1 m/s
Learn more about of average velocity here: https://brainly.com/question/24739297
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