The non-gravitational resistance to motion has a constant magnitude of R newtons.(a) Find the value of R.(4)The rate of working of the car is now increased to 50 kW. At the instant when the speed of the car is Vm s1, the magnitude of the non-gravitational resistance to the motion...
Here, m=1200kg,υ=10m/s,T=1000N P=?sinθ=16,T=? One the level,force applied by the truck = force of friction overcome ∴F=T=1000N power expended on the trailor P=f×υ=1000×10=104W When the truck ascends a road it has to overcome friction and component mgsinθ of ...
A hunter has a machine gun that can fire 50g bullets with a velocity of900ms−1. A 40 kg tiger springs at him with a velocity of10ms−1. How many bullets must the hunter fire into the tiger in order to stop him in his track?