Rain is falling vertically with a speed of `30 ms^-1`. A woman rides a bicycle with a speed of `10 m s^-1` in the north to south direction. What is the direction in which she should hold her umbrella ?

A car travelling with a speed of 2ms^-1 increases its speed to 10ms^-1 in a time interval of 4s. What is the acceleration of car?

A girl riding a bicycle along a straight road with a speed of 5 ms^-1 throws a stone of mass 0.5 kg which has a speed of 15 ms^-1 with respect to the ground along her direction of motion. The mass of the girl and bicyle is 50 kg. Does the speed of the bicycle change after the stone is thrown? What is the change in speed, if so?

A 120 m long train is moving west at a speed of 10 m s^-1 .A small bird flying cast at a speed of 5 ms^-1 crosses the train.What is the time taken by the bird to cross the train?

A car travelling at a speed of 20 ms^-1 applies brackes and stops within 10s. What is the acceleration of car?

A player throws a ball upwards with an initial speed of 29.4 m s^-1 :- What is the direction of acceleration during the upward motion of the ball ?

A car is moving with a speed of 30 m/s. Find the distance covered by the car in 1 minute.

A 5 kg ball is trhown up with a speed of 10 m/s. What is the height to which it rises?

A stone is throw in a vertically upward direction with a velocity of 5ms^(-1) if the stone during its motion is 10ms^(-2) in the downward direction . What will be the height attained by the stone and how much time will it take to reach there ?

A uniform magnetic field of 1.5 T exists in a cylindrical region of radius10.0 cm, its direction parallel to the axis along east to west. A wire carrying current of 7.0 A in the north to south direction passes through this region. What is the magnitude and direction of the force on the wire if, the wire intersects the axis.