Question

a car is moving with an initial velocity of 10 metre per second changes its velocity to 20 metre per second in 5 seconds find the acceleration of the car​

Answer 1

Answer:

2 m/s²

Explanation:

Given:

• Initial velocity (u) = 10 m/s

• Final velocity (v) = 20 m/s

• Time (t) = 5 seconds

To find:

• Acceleration (a)

Method to find:

We can find the acceleration of the car by using the 1st equation of motion.

v = u + at

⇒ 20 = 10 + 5a

⇒ 5a = 20 - 10

⇒ 5a = 10

⇒ a = 10/5

⇒ a = 2 m/s²

Other equations of motion:

• s = ut + 1/2at²

• v² = u² + 2as

Hope it helps!

Answer 2

Acceleration = 2 m/s²

Given ,

• Initial velocity ( u ) = 10m/s
• Final velocity ( v ) = 20m/s
• Time taken to change velocity ( t ) = 5s

We need to find ,

• Acceleration = ?

Using the first equation of motion ,

• v = u + at

Substituting the known values ,

=> v = u + at

=> 20 = 10 + a ( 5 )

=> 20 - 10 = 5 × a

=> 10 = 5a

=> a = 10/5

=> Acceleration = 2 m/s²