Question

4. Dierenute between a scalar and a vector.
5. Classify the following physical quantities as scalars/vectors-
Acceleration, force, time, mass, velocity, speed, density, volume.
G. Numericals
1. If a 1 m long pendulum has a time period of 2 s, what should be the length of a pendulum
period 4 s?
ACO
2. A circle has a radius of 10 cm. A particle from A moves from A to B
along path ACB. What is its distance travelled? What is its
displacement?
3. A pendulum swings back and forth 20 times in 34 s. What is its time period?
4. Find the initial velocity of a car which is stopped in 10 s by applying brakes. Retardation due to
brakes is 2.5 m/s?
5. A body first travels 30 m in 2 s and then travels 40 m in 5 s. What is its average speed?
6. A stone dropped from a tower reaches the ground in 5 s. Calculate the velocity with which it will
the ground? (g = 9.8 ms)
7. An express train moves at a speed of 60 km/hr. How far will it travel in 5 hours?
8. What type of motion do the following figures depict?​

Answer 1

Answer:

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