At t = 0 seconds, a cart is moving with a velocity of 10 cm/s and an acceleration of 4.0 (cm/s) / s. Assuming its acceleration stays at this value, what will its velocity be 7.0 seconds later?

Question

Physics

Aden

29 December, 02:22

At t = 0 seconds, a cart is moving with a velocity of 10 cm/s and an acceleration of 4.0 (cm/s) / s. Assuming its acceleration stays at this value, what will its velocity be 7.0 seconds later?

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Answers (1)

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Wall · Answer 1

For this case what you should do is write the kinematic equations to find the final speed.

We have then:

a = a

vf = a * t + vo

Where,

vf: final speed

a: acceleration

t: time

vo: initial speed.

Substituting the values we have:

vf = (4.0) * (7.0) + (10)

vf = 38 cm / s

answer:

its velocity will be 38 cm / s 7.0 seconds later