Question

Q32 The velocity - time graph for an object is shown in the following figure:

(i) State the kind of motion that the above graph represents.
(ii) What does the slope of the graph represent?
(iii) What does the area under the graph represent ?
(iv) Calculate the distance travelled by the object in 15s.​

Answer 1

Answer:

Explanation:

1. Uniform acceleration

2.Acceleration

3.Displacement

4. 30m/s X 15s=450m

Answer 2

Answer:

(a) Uniformly accelerated motion because velocity is increasing by equal amounts in equal intervals of time.

(b) Quantity is acceleration.

Acceleration = y - axis / x - axis

Acceleration = velocity / time

(c) Area of triangle = 1 / 2 × height × base

= 1 / 2 × velocity × time

(d) Distance (s) = Area under the graph

(s) = 1 / 2 × 15 × 30 = 225 m

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