science

Grade-9

Easy

Question

# The displacement of the body whose v-t graph is given below is ____ m.

Hint:

### The velocity-time graph represents the acceleration.

## The correct answer is: 1050

### Given that,

Initial velocity, u = 0 m/s

Final velocity, v = 60 m/s

Time taken, t = (50 – 15) s = 35 s

The acceleration was found to be 12/7 m/s^{2}

From the second equation of motion, we have

s = ut + ½at^{2}

Or, s = 0 x 35 + ½ (12/7) (35)^{2}

Or, s = (6/7) (1225)

Or, s = 1050 m

Therefore, the maximum distance covered by the ball is 1050 m.

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