# CBSE 9th Physics Tutorials | Motion-Long Answer Type Question

### Question 1. The following is the distance-time table of a moving car.

 Time Distance Time Distance 10.05 am 0km 11.00 am 26 km 10.25 am 5 km 11.10am 28 km 10.40 am 12km 11.25 am 38 km 10.50 am 22 km 11.40 am 42 km

#### (v) During a part of the journey, the car was forced to slow down to 12 km/h, At what distance did this happen?

The distance-time graph for the motion of the car is as shown in the figure given below

The car is traveling with maximum speed between 10.40 am and 10.50 am as during this time the distance-time graph has maximum slope. Here

### Question 2. What types of motion are represented by the following velocity-time graphs?

(a) The body has uniform velocity.

(b) The body has uniform acceleration and its initial velocity is zero.

(c) The body has some initial velocity and is under uniform retardation.

(d) The body has some initial velocity and uniform acceleration.

(e) The body has zero initial velocity and it has variable acceleration.

(f) The body is at rest from O to A, it has uniform acceleration from A to B, it has uniform velocity from B to C and from C to D, the body is under uniform retardation.