Motion Test - 3...

Two trains with lengths 180 m and 220 m respectively, are running in opposite directions with speeds of 40 km/hr and 50 km/hr respectively. The time taken by them in crossing each other will be

The wheel of an engine, with a circumference of 25 decimetres, makes 10 revolutions in 4 seconds. The speed of the wheel (in km/hr) is

Two trains running in the same direction at 40 km/hr and 22 km/hr completely pass one another in one minute. If the length of the first train is 125 m, the length of the second train is

If a body takes as much time to cover 10 m as a car takes to cover 25 m, the distance the body will cover during the time the car covers 1 km is

A train travels the first 15 km at a uniform speed of 30 km/hr, the next 75 km at a uniform speed of 50 km/hr and the last 10 km at a uniform speed of 20 km/hr. Calculate the average speed for the entire journey.

Gaurav travelled 1200 km by air which formed th of his trip. He travelled one-third of the remaining distance by car and the rest by train. The distance travelled by him in train was

A train overtakes two persons who are walking at the rate of 2 km/hr and 4 km/hr in the same direction in which the train is going, and passes them completely in 9 and 10 seconds respectively. The length of the train (in meters) is

The distance between two points A and B is 110 km. A motorcyclist starts from A towards B at 7 a.m. at a speed of 20 km/hr. Another motorcyclist starts from B towards A at 8 a.m. at a speed of 25 km/hr. When will they cross each other?

Two trains starting at the same time from two stations, 200 km apart; and going in opposite directions cross each other at a distance of 110 km from one of stations. The ratio of their speeds may be

A person starts his journey from point A and travels 5 m and reaches point B, then takes a 90^o turn and travels another 12 m upto C. What is the total displacement?

Consider the distance-time graph shown below

During which interval the velocity of the particle is zero?

Which of the displacement- time graphs is impossible?

Consider the following graph

During which interval is the acceleration of the particle positive?

In the above question, during which interval, is the acceleration of the particle negative?

The figure shows the displacement-time graph of a particle moving along x-axis. Which of the following statements will describe the motion of the particle correctly?

The area of a square field is one hectare. The time taken by a boy to run once around it at a speed of 10 km/hr is

A column of marching battalion extending to 250 m in length, takes one hour to march through a street at the rate of 50 paces a minute, each pace being of 75 cm. The length of the street is

A monkey ascends a grease pole 120 meters high, ascending 4 meters in the first minute and slipping down two meters in the next minute, repeating this process till he reaches the top. The time taken by it to reach the top is

A body is dropped freely into a river from a bridge at a height of 125 m. Find the time taken by the body to touch the water surface.

A body is dropped freely into a river from a bridge. It takes 5 s to touch the water surface. The velocity with which, it strikes the water surface is