What is the work to be done to increase the velocity of a car from 30 km h'1 to 60 km h-1 if the mass of the car is 1500 kg?
Answers
Answered by
1
Answer:
the velocity of a car from 30 km h'1 to 60 km h-1 if the mass of the car is 1500
Answered by
1
Answer:
W.D=156125.025joule
Explanation:Work done is equal to change in kinetic energy.So initial K.E was 1/2mv(1)^2 and final K.E is 1/2mv(2)^2.
Given that m=1500kg, v(1)=(30*1000)/3600 m/s=8.33m/s, and v(2)=(60*1000)/3600=16.66m/s.
W.D=1/2m(v(2)^2-v(1)^2)
156125.025 joule
Similar questions