Question

If a car has initial velocity of 20kmph and final velocity of 30kmph find its accleration

Answer 1

Answer:

take

V = final velocity

u = initial velocity

V = u + at

V - u = at

(V-u)/t = a

(30-20)/t = a

10 / t = a

acceleration = 10 / t .... is the answer !

Answer 2

Question should be like -

Find the acceleration of the car after 5 seconds.

Answer:

The acceleration will be 2 m/s².

Explanation:

u = 20 km/h

v = 30 km/h

t = 5 s

a = (v - u)/t

=> a = (30 - 20)/5

=> a = 10/5

=> a = 2 m/s²

The acceleration will be 2 m/s².