HARD
7th CBSE
IMPORTANT
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Which of the following distance-time graphs is not possible? Explain why?

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Important Questions on Kinematics

HARD
7th CBSE
IMPORTANT
The distance between two railway stations A and B is 440 km. Two trains T1 and T2 start simultaneously from the stations A and B, respectively, and move towards each other. The train T1 moves with a constant speed of 60 km h-1 and the train T2 moves with a speed of 50 km h-1. Determine the point where they meet and the time taken for this.
MEDIUM
7th CBSE
IMPORTANT
A body travels a distance of 500 m in 10  minute. Find out the speed of the body in km h-1.
MEDIUM
7th CBSE
IMPORTANT
A student goes to school with a uniform speed of 3 km h-1 and returns to his home with a speed of 2 km h-1. If the student takes 1 hour in all, then find out the distance between the school and the house.
MEDIUM
7th CBSE
IMPORTANT
Kishore walking with a uniform speed covers 20 km in 5 h. Find the distance he covers in 7 hours.
MEDIUM
7th CBSE
IMPORTANT
Determine the speed of the tip of a minute hand of length 10 cm of a wall clock.
MEDIUM
7th CBSE
IMPORTANT
A child counted 20  oscillations in his pendulum clock observed that it took 40 s for that. Find the frequency and time period of the pendulum.
HARD
7th CBSE
IMPORTANT

The distance-time graph for the motion of three vehicles A, B and C are as shown in the figure. SA, SB and SC

are the speeds of A, B and C, respectively. Compare the speeds of A, B and C.

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MEDIUM
7th CBSE
IMPORTANT
Usha participated in a marathon walk and completes the journey in 10 h. If she travels half the distance with a speed of 10 km h-1 and rest of the distance with the speed of 15 km h-1, then calculate the total distance of the marathon walk.