A car is travelling at 20 m/s along a road. A child runs out into the road 50 m ahead and the car driver steps on the brake pedal. What must the car's deceleration be if the car is to stop just before it reaches the child ?

If a car is travelling at 20 m//s on a circular road of radius 400 m, then the radial acceleration will be

If a car is travelling at 20 m//s on a circular road of radius 400m then the radial acceleration will be

A driver of car moving at 20 ms^(-1) finds a child on the road 50 m ahead and stops the car 10 m earlier to the child. If the mass of the car with the driver is 1000 kg. Calculate the force exerted by the breaks on the car and the time taken to stop the car.

A car is initially travelling at 50.0 km/h. The brakes are applied and the car stops over a distance of 35 m. What was magnitude of the car's acceleration while it was braking ?

A car travels at a speed of 50 m/s. for 5 hours. What is the distance (in km) travelled by the car?

A car weighing 1000 kg and travelling at 30 m//s stops at a distance of 50 m decelerating uniformly. What is the force exerted on it by the breaks ? What is the work done by the brakes?

A train(T) is running uniformly on a straight track. A car is travelling with constant speed along section AB of the road which is parallel to the rails. The driver of the car notices that the train is having a speed of 7 m//s with respect to him. The car maintains the speed but takes a right turn at B and travels along BC. Now the driver of the car finds that the speed of train relative of him is 13 m//s . Find the possible speeds of the car.

A car moving at a speed v is stopped in a certain distance when the brakes produce a deceleration a. If the speed of car was nv , what must be the decceleration of the car to stop it in the same distance and in the same time?

A car is travelling along a curved road of radius r. If the coefficient of friction between the tyres and the road is mu the car will skid if its speed exceeds .