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A car of mass 1000kg accelerates uniform...

A car of mass 1000kg accelerates uniformly from rest to a velocity of `54km//h` in 5 seconds. Calculate (i) its acceleration (ii) its gain in KE (iii) average power of the engine during this period.

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To solve the problem step by step, we will break it down into three parts as requested: (i) calculating acceleration, (ii) calculating the gain in kinetic energy (KE), and (iii) calculating the average power of the engine during this period. ### Given Data: - Mass of the car, \( m = 1000 \, \text{kg} \) - Initial velocity, \( u = 0 \, \text{m/s} \) (since the car starts from rest) - Final velocity, \( v = 54 \, \text{km/h} \) - Time, \( t = 5 \, \text{s} \) ...
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Knowledge Check

  • A car of mass 1000 kg accelerates uniformly from rest to a velocity of 54 km/hour in 5s. The average power of the engine during this period in watts is (neglect friction)

    A
    2000 W
    B
    22500 W
    C
    5000 W
    D
    2250 W
  • A body of mass 1 kg accelerates uniformly from rest to a velocity of 1 m s^(-1) in 15 seconds. At what time the kinetic energy of the body will be 2/9 J ?

    A
    4s
    B
    8s
    C
    10s
    D
    12 s
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