Question

Give an example of each

1. Acceleration in the direction of motion.
2. Acceleration is against the direction of motion.
3. Acceleration is uniform.
4. Acceleration is non-uniform.

Answer 1

Examples:

1. Acceleration in the direction of motion:

1. Consider a car moving forward with some acceleration.
2. Then, the direction of acceleration is the same as that of motion.

2. Acceleration is against the direction of motion:

1. Imagine you are throwing a ball upward direction.
2. The acceleration due to gravity will act on that ball against the direction of motion.
3. Here, Acceleration is opposite to the direction of motion.

3. Uniform acceleration:

1. Consider a body moving along a straight line.
2. If the velocity of that body increases in an equal amount in an equal interval of time,
3. That is; at time t = 0 sec, velocity is 0; at t = 1 sec, velocity = 1 ms^-1, and at t = 2 sec, velocity = 2 ms^-1, and so on.
4. Then, the body will have uniform acceleration.

4. Non-uniform acceleration:

1. Consider one car which is moving along a straight path.
2. Suppose the speed of the car increase by an unequal amount in equal intervals of time.
3. That is; at time t = 0 sec, velocity =0 ms^-1, at t =1 sec, v = 5 ms^-1, at t = 2 sec, v = 25 ms^-1 so on.
4. Then the car is said to have non-uniform acceleration.