Question

if a body acquires velocity 20m/s in 5seconds,it's acceleration is 2m/s square find initial velocity of the body..

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Answer 1

Answer:

• 2m/s is the required initial velocity of the body.

Step-by-step explanation:

According to the Question

It is given that,

• Final velocity ,v = 0m/s
• Time ,t = 5s
• Acceleration ,a = 2m/s²

we have to calculate the initial velocity of the body.

For calculating the initial velocity of body we will use here kinematics equation .

• v = u + at

where,

v denote final velocity

u denote initial velocity

a denote acceleration

t denote time taken

by putting the value we get

↠ 20 = u + 2×5

↠ 20 = u + 10

↠ u = 20/10

↠ u = 2m/s

• Hence, the initial velocity of the body is 2m/s.

Answer 2

QUESTION :

• if a body acquires velocity 20m/s in 5seconds,it's acceleration is 2m/s square find initial velocity of the body

GIVEN :

• if a body acquires velocity 20m/s in 5seconds

• acceleration is 2m/s square

TO FIND :

• find initial velocity of the body = ?

SOLUTION :

final velocity = 20 m/s

time taken = 5 second

• intial velocity = u + 2 × 5

• intial velocity = u + 10

• intial velocity = 20/10

then , we will divide 20 with 10 we get :

• intial velocity = 2 m/s

so, we have intial velocity we get = 2 m/s

more about these questions :

v we will Called as final velocity

u we will Called as intial velocity

a we called as Acceleration

t we will Called as time