Question

2.a)The velocity changes from 45m/s to 60m/s in three seconds. What is the acceleration.​

Answer 1

Answer:5m/s^2

Explanation:

INITIAL VELOCITY(U)=45M/S

FINAL VELOCITY(V)=60M/S

TIME(T)=3s

Acc=V-U/T

=60-45/3

=15/3

=5m/s^2

Answer 2

Therefore the acceleration of the body is 5 m²/s.

Given:

Initial Velocity = 45 m/s

Final Velocity = 60 m/s

Time taken = 3 sec

To Find:

The acceleration of the body.

Solution:

The given question can be solved as shown below.

Given that,

Initial Velocity = u = 45 m/s

Final Velocity = v = 60 m/s

Time taken = t = 3 sec

⇒ Acceleration of the body = a = ( Change in velocity ) / ( Time taken )

⇒ Acceleration of the body = a = ( v - u ) / t

⇒ Acceleration of the body = a = ( 60 - 45 ) / 3 = 15/3 = 5

Therefore the acceleration of the body is 5 m²/s.

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