How much net work is required to accelerate a 1200 kg car from 10ms−1 to 15ms−1

How much net work is required to accelerate a 1200 kg car from 10ms−1 to 15ms−1
A. 1.95×105j105
B. 1.35×104j104
C. 7.5×104j104
D. 6.0×104j

Correct Option: Answer is C
The net work (W) done on an object can be calculated using the work-energy principle, which is given by the formula:
W=ΔKE
where ΔKE is the change in kinetic energy. The change in kinetic energy is given by the difference between the final kinetic energy (KEfinal) and the initial kinetic energy (KEinitial).
ΔKE = ΔKEfinal−KEinitial
The kinetic energy (KE) is given by the formula:
KE =1/2mv2
where:
• m is the mass of the object (given as 1200 kg for the car),
• v is the velocity of the object.

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