Question

A car traveling 54km per hour. If its velocity increase to 72km/h in 5sec. Find the acceleration of the car in SI unit.

Answer 1

Answer:

Acceleration of car in SI unit is 1 m/s²

Explanation:

★As above the acceleration of car is to be described in SI units.

★As we know that the SI unit is distance is metre.

★SI unit of time is second. Hence we have to calculate the velocities in m/sec.

◆Therefore,

Initial velocity

u = 54 km/h

→Convert it into m/sec

= 15 m/s

★Final velocity

v = 72 km/hr

→Convert it into m/sec

= 20 m/sec

★Time taken = 5sec

= 1 m/s²

★Therefore

→Acceleration of car in SI unit is 1 m/s²