CBSE BOARD XII, asked by rupali234, 10 months ago

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 ?

Answers

Answered by kkumawat50
2

Answer:

Work done = 1,31,250 J

Explanation:

Answered by Anonymous
0

Answer:

ExplanationAnswer:

Explanation: Given

Mass m = 1500kg

U = 54 km/ hr

= 54 X 5 / 18

= 15 m/s //

V = 72 km /hr

= 72 X 5 / 18

= 20 m/s //

By applying the formula

K.E = 1/2 m ( v²- u²)

1/2 X 1500 ( 20²- 15²)

By solving you will get the answer as

13125 J //

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