Saved Bookmarks
| 1. |
Question 62: Study the speed-time graph of a car given alongside and answer the following questions: (i) What type of motion is represented by OA ? (ii) What type of motion is represented by AB ? (iii) What type of motion is represented by BC ? (iv) What is the acceleration of car from O to A ? (v)What is the acceleration of car from A to B ? (vi) What is the retardation of car from B to C ? Lakhmir Singh Physics Class 9 |
|
Answer» tion:The motion from O to A represents a UNIFORM acceleration. The CONSTANT rate of acceleration is derived from the constant increase in speed at a particular time.The motion from A to B has a Constant speed. This is because speed remains constant for the time.Uniform retardation is represented by BC. This is because there’s a steady rate of decrease in speed PER unit time. The acceleration of a car is .The acceleration of the car from point A to B is Zero. This is because there’s no change in velocity at this moment.The retardation of the car from point B to C is |
|