Question

A car weighing 1000 kg is travelling on a level road with a uniform velocity of 60 kmh-l. The
resistance offered to the motion due to air and friction is 50N. The work done by the car in travelling
a distance of 1 km is-
(A) 5 x 10^4J
(B) 60 x 10^3J
(C) 60 x 10^6J
(D) 3000 J​

Answer 1

Answer:

(1000 m×50 N)+(1/2× 1000 ×(2500÷9))Nm=188888.8888 J

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