Question

11. Find the velocity of a car which starts from rest and moves with constant acceleration 10 ms-2 for 1.5s. What distance will the car cover in 1.5s?​

Answer 1

i have attached the worked out answers in the pictures above. kindly refer to it.

Answer 2

Given :      a car which starts from rest and moves with constant acceleration 10 ms-2 for 1.5s.

To Find : velocity after 1.5 sec

distance will the car cover in 1.5s?

Solution:

v = u + at

u = 0 m/s

a = 10 m/s²

t = 1.5 sec

v = 0 + 10 (1.5)

=> v = 15

Hence velocity after 1.5 sec  = 15 m/s

S = (1/2)(u + v) * t

=> S = (1/2)(0 + 15) * 1.5

=> S = 11.25  m

or use

S = ut + (1/2)at²

=> S = 0 + (1/2) (10) (1.5)²  =   11.25  m

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