An aeroplane requires for take off a speed of `80 km//h` the run on the ground being 100 m The mass of aeroplane is `10^(4)` kg and coefficient of friction between aeroplane and ground is 0.2 What is the maximum force required by the engine of the plane for take off ?

An aeroplane requires for take off a speed of 80 km//h the run on the ground being 100 m The mass of aeroplane is 10^(4) kg and ground is 0.2 What is the maximum force required by the engine of the plane for take off ?

An aeroplane requires for take off a speed of 108 kmph the run on the ground being 100m mass of the plane is 10^(4)kg and the coefficinet of friction between the plane and the ground is 0.2 . Assuming the plane accelerates uniformly the minimum force required is (g =10ms^(-2)) .

A car is taking a turn of radius 400 m on a horizontal circle . Coefficient of friction between the ground and tyres of car is 0.2 . Find the maximum speed with a safe turn can be taken

Find the force required to move a train of mass 10^(5) kg up an incline of 1 in 50 with an acceleration of 2 ms^(-2) . Coefficient of friction between the train and rails is 0.005. Take g = 10^(2) .

A is a 100kg block, and B is a 200kg block. As shown in figure the block A is attached to a string tied to a wall. The coefficient of friction between A and B is 0.2 and the coefficient of fricition between B and floor is 0.3. Then calculate the minimum force required to move the block B. (take g=10m//s^(2) ).

In the show arrangement mass of A=1 kg, mass of B= 2kg. Coefficient of friction between A and B =0.2 There is no friction between B and ground. The frictional force exerted by A on B equals.

Two small blcok m=2kg each kept on wedge of mass 12 kg . There is no friction between blocks and wedge coefficient of friction between wedge and ground in mu=0.3 . Calculate frictional force by ground on wedge.

A 50 kg man is standing at the centre of a 30 kg platform A. Length of the platform is 10 m and coefficient of friction between the platform and the horizontal ground is 0.2. Man is holding one end of a light rope which is connected to a 50 kg box B. The coefficient of friction between the box and the ground is 0.5. The man pulls the rope so as to slowly move the box and ensuring that he himself does not move relative to the ground. If the shoes of the man does not slip on the platform, calculate how much time it will take for the man to fall off the platform. Assume that rope remains horizontal, and coefficient of friction between shoes and the platform is 0.6.