physics
motion
Easy
Question
A ball is dropped on the floor from a height of 10 m. It rebounds to a height of 2.5 m. If the ball is in contact with the floor for 0.01 sec, the average acceleration during contact is
The correct answer is:
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Which of the following options is correct for the object having a straight line motion represented by the following graph
Which of the following options is correct for the object having a straight line motion represented by the following graph
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If a car covers 2/5th of the total distance with v1 speed and 3/5th distance with v2 then average speed is
If a car covers 2/5th of the total distance with v1 speed and 3/5th distance with v2 then average speed is
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A person travels along a straight road for the first half time with a velocity 
and the next half time with a velocity 
. The mean velocity of the man is
A person travels along a straight road for the first half time with a velocity and the next half time with a velocity . The mean velocity of the man is
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The ratio of the numerical values of the average velocity and average speed of a body is always
The ratio of the numerical values of the average velocity and average speed of a body is always
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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:
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:
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A particle moves along a semicircle of radius 10m in 5 seconds. The average velocity of the particle is
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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 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
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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 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
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Which of the following is a one dimensional motion
Which of the following is a one dimensional motion
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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
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
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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 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
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One car moving on a straight road covers one third of the distance with 20 km/hr and the rest with 60 km/hr. The average speed is
One car moving on a straight road covers one third of the distance with 20 km/hr and the rest with 60 km/hr. The average speed is
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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 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
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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 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
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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 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
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