Question

arrange the motor vehicles according to increasing kinetic energy. explain your answer delivery truck 60km/h car 60km/h motorcycle 60km/h bicycle 20km/h

Answer 1

Answer:

initial speed of car=20 km/hr = 5.55 m/s

final speed of the car= 60 km/hr= 16.667m/s

time taken=6 sec

Acceleration=(v-u)/t         [v=final velocity ; u=initial velocity  ; t=time taken ]

∴Acceleration=11.112 m/s²

NOTE:

 

# All the units should be of same order, hence we have to convert km/hr speed of car to m/s, since time given is in sec.

# To convert km/hr to m/s just multiply the given value of km/h with 5/18

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