Question

A particle accelerates from rest with an acceleration of 8.0m/s2. Calculate its velocity after 150s. What kinematic formula must be used to solve this problem?
Sample answer format: c=a+b (no spaces in between). If subscript is needed type it as it is , for example cf=ai+b.

Answer 1

Answer:

v = u + at

Explanation:

Substitute the values and get the answer.

I have also listed variables and values with reference to this question.

v = final velocity = ?

u = initial velocity = 0

a = acceleration = 8

t = time taken = 150

Hope it helps :)

Answer 2

Answer:

Final velocity: 1200 m/s

Explanation:

Formula:   $\overline{a} = \frac{v - v_0}{t} = \frac{\Delta v}{\Delta t}$

Where:

a = average acceleration

v = final velocity

vo = starting velocity

t = elapsed time

Here the final velocity is unknown which we have to find. The initial is 0 m/s

as it was at rest. The time taken: 150 seconds. Acceleration given 8.0 m/s²

using the formula:

$\overline{a} = \frac{v - v_0}{t}$

$8 = \frac{v - 0}{150}$

$v = 1200$ m/s