Question

3. A bowler bowled at a speed of 40 m/s. An Indian cricketer hits the ball, its moves in
opposite direction with a speed of 60 m/s. What is the acceleration of the ball if time taken
is 10 seconds?
a. 50 m/s2
b. 30 m/s2
C. 2 m/s
d. 10 m/s2​

Answer 1

Answer:

2m/s is the answer.

Explanation:

initial velocity(u)=40m/s

final velocity(v)=60m/s

acceration of the ball(a)=?

time taken (t)= 10sec

a=v-u/2

=60-40/2

=2m/s^2

Answer 2

C. 2 m/s

Answer:-

• 2m/s² is the required acceleration.

Given:-

• Initial velocity ,u = 40m/s
• Final velocity ,v = 60m/s
• Time taken ,t = 10s

To Find:-

• Acceleration of the ball ,a

Solution:-

According to the Question

It is given that bowler bowled at a speed of 40m/s. An Indian cricketer hits the ball, it's moves in opposite direction with a speed of 60m/s.

We have to calculate the acceleration of the ball.

As we know that acceleration is defined as the rate of change in velocity.

• a = v-u/t

where,

• v is the final velocity
• a is the acceleration
• u is the initial velocity
• t is the time taken

Substitute the value we get

→ a = 60-40/10

→ a = 20/10

→ a = 2m/s²

Hence, the acceleration of the ball is 2m/s².