A man goes 10m towards North, then 20m towards east then displacement is
A person moves 30 m north and then 20 m towards east and finally 30√2 m in south-west direction. The displacement of the person from the origin will be
An aeroplane flies 400 m north and 300 m south and then flies 1200 m upwards then net displacement is
An athlete completes one round of a circular track of radius R in 40 sec. What will be his displacement at the end of 2 min. 20 sec
A car travels from A to B at a speed of 20km/hr and returns at a speed of 30km/hr. The average speed of the car for the whole journey is
A boy walks to his school at a distance of 6 km with constant speed of 2.5 km/hour and walks back with a constant speed of 4 km/hr. His average speed for round trip expressed in km/hour, is
A car travels the first half of a distance between two places at a speed of 30 km/hr and the second half of the distance at 50 km/hr. The average speed of the car for the whole journey is
A car moves for half of its time at 80 km/h and for rest half of time at 40 km/h. Total distance covered is 60 km. What is the average speed of the car
A train has a speed of 60 km/h. for the first one hour and 40 km/h for the next half hour. Its average speed in km/h is
Which of the following is a one dimensional motion
A 150 m long train is moving with a uniform velocity of 45 km/h. The time taken by the train to cross a bridge of length 850 meters is
A particle is constrained to move on a straight line path. It returns to the starting point after 10 sec. The total distance covered by the particle during this time is 30 m. Which of the following statements about the motion of the particle is false
A man walks on a straight road from his home to a market 2.5 km away with a speed of 5 km/h. Finding the market closed, he instantly turns and walks back home with a speed of 7.5 km/h. The average speed of the man over the interval of time 0 to 40 min. is equal to
The ratio of the numerical values of the average velocity and average speed of a body is always
The numerical ratio of displacement to the distance covered is always
A 100 m long train is moving with a uniform velocity of 45 km/hr. The time taken by the train to cross a bridge of length 1 km is
A particle moves for 20 seconds with velocity 3 m/s and then velocity 4 m/s for another 20 seconds and finally moves with velocity 5 m/s for next 20 seconds. What is the average velocity of the particle
The correct statement from the following is
A car travels half the distance with constant velocity of 40 kmph and the remaining half with a constant velocity of 60 kmph. The average velocity of the car in kmph
The displacement of a body is given to be proportional to the cube of time elapsed. The magnitude of the acceleration of the body is
A body under the action of several forces will have zero acceleration
The acceleration of a moving body can be found from
The initial velocity of the particle is 10 m/s and its retardation is 2m/sec² . The distance moved by the particle in 5th second of its motion is
A motor car moving with a uniform speed of 20 m/sec comes to stop on the application of brakes after travelling a distance of 10m Its acceleration is
The velocity of a body moving with a uniform acceleration of 2 m/sec² is 10 m/sec . Its velocity after an interval of 4 sec is
