Question

A car attains a velocity of 36km/h after accelerating uniform motion from rest in 5 second. Find the distance travelled by car.​

Answer 1

SOLUTION -

• Since in this question we have the initial velocity, from rest(u = 0 km/hr) and final velocity (v = 36km/hr) and time of 5 seconds, we will use the following kinematic equation:

S = 1/2 ( u + v) t

• where S is the distance( displacement), u is the initial velocity ( 0 km/hr), v is the final velocity(36km/hr) and t is time taken(5 secs).

convert 36km/hr to m/s

⇒ 36km/hr × 10/36 = 10m/s

→ S = 1/2 ( 0 + 10) 5

→ S = 1/2 × 10 × 5

→ S = 5 × 5

→ S = 25 meters

Therefore the distance traveled by this car is 25 meters .