Question

An object is moving with initial velocity of 25 ms−1 and after 10 s it reaches a final velocity of 50 ms−1. Find its acceleration?​

Answer 1

Given:

An object is moving with initial velocity of 25 ms−1 and after 10 s it reaches a final velocity of 50 ms−1.

To find:

Acceleration of object?

Calculation:

Applying 1st Equation of Kinematics (since acceleration is said to be constant):

$\rm \: v = u + at$

$\rm \implies 50 = 25 + a(10)$

$\rm \implies 10a = 50 - 25$

$\rm \implies 10a = 25$

$\rm \implies a = 2.5 \: m {s}^{ - 2}$

So, acceleration of object is 2.5 m/s².

Answer 2

Answer:

v=u+at

50=25+a(10)

10a=50-25

10a=25

a=2.5

Ans: The acceleration is 2.5 ms-2