Question

A particle covers 150 m in 8th second when starts from rest, its acceleration
(a) 5 m/s
(b) 10 m/s2 (c) 15 m/s2
(d) 20 m/s2​

Answer 1

Answer:

2om/S2 this is the answer

Answer 2

Given:

• Distance covered by the particle, s = 150m
• Time, t = 8 sec
• Initial velocity = 0

To Find:

Acceleration of the particle = ?

Solution:

According to the que,

The distance covered in nth second by particle,

$\large u + \dfrac{1}{2} \times (2n - 1)a$

Where,

• u = Initial velocity.
• a = acceleration of the particle.

Put the given values in the above formula,

=> $150 = 0 + \dfrac{1}{2} \times (2 \times 8 - 1)a$

=> $150 = \dfrac{15a}{2}$

=> $150 \times \dfrac{2}{15}$

=> $\large a = 20 m/s^2$

Hence:

The acceleration of the particle is 20 m/s².