Question

a car starts from rest accelerates at a rate of 0.4 m/s^2 for 50 s . what is the velocity of the car after 50 s.

Answer 1

Answer :-

Given :-

• Initial velocity = 0 ( starts from rest )
• Acceleration = 0.4 m/s²
• Time = 50 seconds

To Find :-

• Final velocity of car

Solution :-

We know that,

→ a = ( v - u ) / t

where

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

Substituting the value in formula :-

→ 0.4 = ( v - 0 ) / 50

→ 0.4 = v / 50

→ v = 50 × 0.4

→ v = 20

Final velocity = 20 m/s