Question

The velocity of a body increases from 2 m/s to 12 m/s in 5 seconds. The acceleration of the body is​

Answer 1

Answer:

final velocity = 12m/s

initial velocity= 2m/s

time = 5 sec

acceleration = 10/2 = 5m/s²

Answer 2

The acceleration of the body = 2 m/s².

GIVEN:

The velocity of a body increases from 2 m/s to 12 m/s

Time = 5 seconds

TO FIND:

The acceleration of the body.

EXPLANATION:

v=u+at

v = 12 m/s [ This is velocity acquired at the 5th second ]

u = 2 m/s [ This is the velocity which the body had at the beginning ]

t = 5 s

12 = 2 + a(5)

10 = 5a

a = 10/5

a = 2 m/s²

Hence the acceleration of the body is 2 m/s².

SOME MORE FORMULAE:

S = ut + 1/2 at²

v² - u² = 2as