Question

The velocity of a car increase from
54 km/hr to 72 km/hr. How much is
the work done if the mass of the car
is 1500 kg ?​

Answer 1

Increase in velocity=54km/hr to 72km/h

Mass of the car=1500kg

From the relation,

$k = \frac{1}{2} m {v}^{2}$

Answer 2

Answer:

WORK DONE =ENERGY CONSUMED

WORK DONE = 1/2 mv^2

MASS OF OBJECT = 1500.

VELOCITY= 72-54 = 18.

PUTTING IN THE FORMULA

= 1/2 × 1500×(18)^2

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