A particle covers 10 m in first 5 seconds and 20 m in next 5 seconds. What is the nature of its motion?

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Questions Match

1. A particle covers 10 m in first 5 seconds and 20 m in next 5 seconds. What is the nature of its motion?

1. Uniform acceleration2. Uniform retardation3. Non-uniform acceleration4. Uniform velocity

2. A particle starts from rest and accelerates uniformly at 4 m/s². The time it takes to cover 100 m is:

1. 5 s2. 6 s3. 7 s4. 8 s

3. A particle moves in a straight line with constant acceleration and passes through points A and B with speeds 10 m/s and 20 m/s respectively. If AB = 150 m, the acceleration is:

1. 2.5 m/s²2. 3.0 m/s²3. 3.5 m/s²4. 4.0 m/s²

4. A particle of mass \( m \) moves in a circle of radius \( r \) with constant speed \( v \). What is the expression for centripetal force?

1. \( \frac{mv^2}{r} \)2. \( \frac{mr^2}{v} \)3. \( \frac{v^2}{mr} \)4. \( \frac{r}{mv^2} \)

5. If the speed of a particle is constant in circular motion, which of the following is necessarily changing?

1. Kinetic energy2. Acceleration magnitude3. Displacement magnitude4. Direction of velocity

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A particle covers 10 m in first 5 seconds and 20 m in next 5 seconds. What is the nature of its motion?