Question

if a particle starts at rest and velocity v 10 m/s after t=15 s then find the acceleration of the particle​

Answer 1

a= v-u / t

= 0-10 / 15

= 0.67 m/s

Answer 2

Given:

• a particle starts at rest and velocity 10 m/s after t = 15 s.

To find:

• The acceleration of the particle?

Solution:

Using the first equation of motion,

• v = u + at

• v denotes final velocity
• u denotes initial velocity
• a denotes acceleration
• t denotes time

Substituting the values.

⟶ 10 = 0 + a(15)

⟶ 10 = 15a

⟶ a = 15/10

⟶ a = 1.5 m/s²

∴ Hence, Acceleration of the particle is 1.5 m/s².