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Class 9 Physics Motion Problems

The document contains 6 physics problems related to motion for a 9th grade class. Problem 1 asks about average speed and calculating it for a bus journey. Problem 2 asks to derive the position-time relation using a graphical method. Problem 3 gives details of a scooterist on a circular track and asks about distance, displacement, and time taken.

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Ashish Kumar
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56 views1 page

Class 9 Physics Motion Problems

The document contains 6 physics problems related to motion for a 9th grade class. Problem 1 asks about average speed and calculating it for a bus journey. Problem 2 asks to derive the position-time relation using a graphical method. Problem 3 gives details of a scooterist on a circular track and asks about distance, displacement, and time taken.

Uploaded by

Ashish Kumar
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Test

Physics – Motion. Class 9th.

1. a) Define average speed.


. (b) A bus travels a distance of 120 km with a speed of 40 km/h
and returns with a speed of 30 km/h. Calculate the average
speed for the entire journey.
2. Derive the equation for position-time relation by graphical
method.
3. A circular track has a circumference of 3140 m with AB as one of
its diameter. A scooterist moves from A to B along the circular path
with a uniform speed of 10 m/s. Find
(a) distance covered by the scooterist,
. (b) displacement of the scooterist, and
. (c) time taken by the scooterist in reaching from A to B.
4. A train starting from rest attains a velocity of 72 km/h in 5 minutes.
Assuming the acceleration is uniform, find
. (i) the acceleration.
. (ii) the distance travelled by the train for attaining this Velocity.
5. Derive third equation of motion by analytical method.
6. A bus accelerates uniformly from 54 km/h to 72 km/h in 10 seconds
Calculate
. (i) acceleration in m/s2
(ii) distance covered by the bus in metres during this interval.

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