Question

The following table gives the data about motion of a car.

Time (h) 11.00 11.30 12.00 12.30 1.00

Distance

(km)

0 30 30 65 100

Plot the distance-time graph.

(i)Find the speed of the car between 12.00 hrs. and 12.30 hrs.

(ii)What is the average speed of the car?

(iii)Is the car’s motion an example of uniform motion? Justify​

Answer 1

Answer:

find the speed of the car between 12:00 hours to 12:30 hours

time = 12:30 - 12:00 = 30 mins = 1/2 hr

Distance = 65-30 = 35 km

average speed = distance/ time taken

= 35/(1/2) = 70 km/hr

what is the average speed of the car

total time = 1:00 pm = 13:00 - 11:00 = 2 hrs

distance = 100 km

speed = 100/2 = 50 km/ hr

is the car's motion is an example of uniform motion

No

ist 1/2 hr 60 km/ hr

2nd 1/2 hr 0 km/ hr

next 2 1/2 hrs 70 km/ hr

Explanation:

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