Question

A car starts from the state of rest, moves with a uniform acceleration for 6 seconds and

attains a velocity of 36 m/s) What is the initial velocity of the car

b) Find the acceleration of the car​

Answer 1

Answer :-

Given :-

• Initial velocity = 0 m/s
• Final velocity = 36 m/s
• Time taken = 6 sec

To find :-

• Acceleration - a

Solution :-

The car is at rest, hence the Initial velocity of a car = 0

Calculating Acceleration :-

• u = 0 m/s
• v = 36 m/s
• t = 6 sec

Substituting the value in 1st equation of motion :-

⟹ v = u + at

⟹ 36 = 0 + 6a

⟹ 6a = 36

⟹ a = 36/6

⟹ a = 6 m/s²

Acceleration = 6 m/s²

Answer 2

Given :-

• Initial Velocity (u) = 0 m/s
• Time (t) = 6 s
• Final Velocity (v) = 36 m/s

To Find :-

• Acceleration (a)

Here in this question we have Initial Velocity, Time, Final Velocity is given.

So, we will calculate acceleration

Formula Used :-

• v = u + at

Subsituting Values

→ 36 = 0 + a × 6

→ 36 = 0 + 6a

→ 36 = 6a

→ 6a = 36

→ a = 36/6

→ a = 6

So, we got the acceleration of the car which is 6 m/s²