science

Grade-7

Easy

Question

# Analyze the graphs given below and choose the correct option for them.

- (a) represents a non-uniformly accelerating body
- (b) represents a non-uniformly decelerating body
- The body in the graph (a) starts from rest. However, the body in the graph (b) comes to rest
- All of the above

Hint:

### Slope of velocity-time graph shows acceleration.

## The correct answer is: All of the above

### Let's understand both graphs separately.

- Graph A: - This graph represents a non-uniformly accelerating motion of the body as the slope is positive and speed is changing unequally in unequal intervals of time. And the body started from rest as graph is starting from origin.
- Graph B: - This graph represents a non-uniformly decelerating motion of the body as the slope is negative and velocity of body is changing unequally in unequal intervals of time. And at the end body came to rest as the graph's end point is coinciding with X-axis.

Hence, all the above options are correct.

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