MEDIUM
9th CBSE
IMPORTANT
Earn 100

The graph given below shows the position of a body moving along the x-axis as a function of time

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Answer the following: (a) Calculate the velocity (i) in first 2 seconds (ii) between 2 to 5 seconds (iii) between 5 to 7 seconds.

(b) What is the position of the body at ? (i) t = 5 s (ii) t = 7 s

(c) What is the displacement of the body during the 7th s of motion?

Important Questions on Motion

MEDIUM
9th CBSE
IMPORTANT

The d-t Graph for a body is given below. State whether the velocity and acceleration of the body in the region AB, BC, DE, EF and FG are positive, negative, or Zero.

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MEDIUM
9th CBSE
IMPORTANT
Explain with the help of examples the positive, negative and zero displacement. 
MEDIUM
9th CBSE
IMPORTANT
Discuss the types of acceleration. Also explain each one of them by giving one example.
MEDIUM
9th CBSE
IMPORTANT
How can you calculate (i) distance, and (ii) acceleration from v - t graph?
HARD
9th CBSE
IMPORTANT

Using the following data plot the d-t graph of a moving car and answer the following questions:

Time (a.m.) 10.00 10.05 10.20 10.30 10.45 11.00 11.10 11.25 11.45 12.00
Distance (km) 0 5 10 22 25 30 34 40 50 55


(a) When was the car travelling at the greatest speed?

(b) What is the average speed of the car?

(c) What is the speed between 10.20 a.m. to 10.30 a.m. ?

(d) During a part of the journey, the car was forced to slow down to 12 km/h. During which period did this happen? 

HARD
9th CBSE
IMPORTANT

Derive the velocity-time relation using a speed-time graph

MEDIUM
9th CBSE
IMPORTANT
Derive the position-time relation using a speed-time graph.
MEDIUM
9th CBSE
IMPORTANT

Derive the position-velocity relation using a speed-time graph.