A ca of weight20000 Newton climbs up a hill at a steady speed of 8 M per second gaining a height of 120 m in 100 seconds calculate the work done by the car and power of engine of car
Answers
Answered by
2
work done by car=f×s=20000×120
=2400000J
=2400000J
Answered by
3
Given that,
W=mg = 20000N
So, m =W/g= 2000 kg
as g = 10m/s^2
t =100s
h = 120m
(a) Work done by the car,
W = Increased energy of the car
= mgh = 20000 x 120 =2.4x 10^6 Joule
(b) Power of engine P = W/t
= 2.4 x 10^6 / (100s) = 2.4 x 10^4 Watt
i hope it will help you
regards
W=mg = 20000N
So, m =W/g= 2000 kg
as g = 10m/s^2
t =100s
h = 120m
(a) Work done by the car,
W = Increased energy of the car
= mgh = 20000 x 120 =2.4x 10^6 Joule
(b) Power of engine P = W/t
= 2.4 x 10^6 / (100s) = 2.4 x 10^4 Watt
i hope it will help you
regards
subh9:
answer work done by the car=2400kjand power of engine of car= 24kw
Similar questions