Motion class 9 extra questions numerical

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motion class 9 extra questions numerical

Motion class 9 extra questions numerical

Practice problems with solutions for CBSE/NCERT Class 9 Physics

Distance-Time Graphs Equations of Motion Acceleration Numericals

Important Formulas

\[ \text{Speed} = \frac{\text{Distance}}{\text{Time}} \]
\[ \text{Velocity} = \frac{\text{Displacement}}{\text{Time}} \]
\[ \text{Acceleration} = \frac{\text{Change in Velocity}}{\text{Time}} \]
\[ \text{Average Speed} = \frac{\text{Total Distance}}{\text{Total Time}} \]

Equations of Motion:

\[ v = u + at \]
\[ s = ut + \frac{1}{2}at^2 \]
\[ v^2 = u^2 + 2as \]

Basic Numericals

Q1. A car travels 300 km in 5 hours. Calculate its speed in km/h and m/s.

Q2. A train accelerates uniformly from rest to 72 km/h in 5 minutes. Calculate its acceleration in m/s².

Intermediate Numericals

Q3. A bus moving at 40 km/h accelerates uniformly at 0.2 m/s² for 2 minutes. Find the distance traveled during this period.

Q4. A scooter traveling at 10 m/s applies brakes and comes to rest in 5 seconds. Calculate (a) retardation (b) distance covered before stopping.

Graph-Based Numericals

Q5. The distance-time graph for a car is shown below. Calculate:
(a) Speed during first 2 hours
(b) Average speed for entire journey

[Graph description: 0-2h: 60 km, 2-3h: 0 km, 3-5h: 100 km]

Q6. A velocity-time graph shows:
0-5s: Uniform acceleration from 0 to 10 m/s
5-10s: Constant velocity at 10 m/s
10-15s: Uniform retardation to 0 m/s
Calculate: (a) Acceleration (b) Distance covered

Challenging Numericals

Q7. Two cars A and B start from the same point. Car A moves north at 40 km/h and car B moves east at 30 km/h. After 2 hours, calculate:
(a) Distance between the two cars
(b) Relative velocity of car A with respect to car B

Q8. A train 150 m long passes a pole in 5 seconds. How long will it take to pass a 250 m long platform?

Additional Practice Questions

Q9. A car travels first 30 km at 60 km/h and next 40 km at 80 km/h. Calculate its average speed.

Q10. A stone is dropped from a height of 80 m. Calculate (a) time to reach ground (b) velocity just before hitting ground (Take g = 10 m/s²).

Q11. A body moving with 5 m/s accelerates at 2 m/s² for 10 s. Calculate the final velocity and distance covered.