Question

a body is moving with a velocity of 5m/s and after 3 second it's velocity becomes 8m/s. Find the acceleration of the body?​

Answer 1

Answer:

1 m/s²

Explanation:

Initial velocity of the body(u) = 5 m/s

Final velocity of the body(v) = 8 m/s

Time(t) = 3 seconds

Acceleration (a) = v-u/t

= (8 m/s-5 m/s)/3 s

= (3 m/s)/3 s

= 1 m/s²

Therefore, the acceleration of the body is 1 m/s²

Answer 2

Answer :

➥ The acceleration of a body = 1 m/s²

Given :

➤ Intial velocity of a body (u) = 5 m/s

➤ Final velocity of a body (v) = 8 m/s

➤ Time taken by the body (t) = 3 sec

To Find :

➤ Acceleration of a body (a) = ?

Solution :

Acceleration of a body

Acceleration is given by

$\tt{:\implies a = \dfrac{v - u}{t} }$

$\tt{:\implies a = \dfrac{8 - 5}{3} }$

$\tt{:\implies a = \cancel{\dfrac{3}{3} }}$

$\bf{:\implies \underline{ \: \: \underline{ \purple{ \: \: a = 1 \: m/s^2 \: \: }} \: \: }}$

Hence, the acceleration of a body ja 1 m/s².

⠀⠀

Additional Information :

What is acceleration ?

➜ Acceleration is a vector quantity that is defined as the rate at which an object changes its velocity. An object is accelerating if it is changing its velocity.

What is Instantaneous acceleration ?

➜ The ratio of change in velocity during a given time interval such that the time interval goes to zero.

What is the formula of acceleration ?

➜ $\sf{a = \dfrac{v - u}{t}}$

➜ $\sf{\dfrac{Change\: in\: velocity }{time}}$

➜ $\sf{a = \dfrac{v_{f} - u_{i}}{t}}$

Where,

• a is the acceleration
• v is final velocity
• u is intial velocity
• t is time taken
• $\sf v_{f}$ is final velocity
• $\sf u_{i}$ is intial velocity

What is the SI unit of acceleration ?

➜ The SI unit of acceleration is m/s².

━━━━━━━━━━━━━━━━━━━━━