Question

A car travelling at 20km/h, it speeds up to 60km/h in 6 seconds. What is its acceleration?In km per hour

Answer 1

Final velocity=60km/hr =60×5/18=300/18 m/s

Initial Velocity=20km/hr=20×5/18=100/18 m/s

acc=(final -initial velocity)/time

=(300/18 -100/18)/6

=200/18/6

=200/108 m/sec^2

=1.85m/sec^2