A truck weighing 1000 kgf changes its speed
Asked by admin @ in Physics viewed by 286 People
A Truck weighing 1000 kgf changes its speed from 36 km h⁻¹ to 72 km h⁻¹ in 2 minutes. Calculate (i) Work Done by the engine and (ii) its power (g=10ms⁻²)
Answered by admin @
Explanation:-
u=36 km h=36×5/18
u=10 m/s
v=72 km h=72×5/18
v=20 m/s
So the work done is 1.5×10^4 joules
So the work done is 1.25×10^3
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