Question

A truck accelerates uniformly from 36 km/h to 90 km/h in 10 seconds. Find its acceleration and distance covered by it in given time.

Answer 1

Explanation:

given :

A truck accelerates uniformly from 36 km/h to 90 km/h in 10 seconds. Find its acceleration and distance covered by it in given time.

to find :

Find its acceleration and distance covered by it in given time.

solution :

• Acceleration = Change in Velocity/Time

• Change in Velocity = 90- 36 = 36 km/ h = 10

• m/s

• Time = 10 second

• Acceleration = 10/10 = 1 m / s 2

• Equation of motion,s=ut+(1/2)at2

• u= 36km/h 10 m/s

• t= 10 s

• a=1 m/s2

• s= (10*10)+(1/2*1*10* 10)

• s= 100 + 50 = 150 m