Question

4. A train started from a station A at 8.00 am and arrieved a
distance between the two stations A and B is 160 Km, find
1. Answer the following questions.
5. Write any two applications of Newton's Third Law of moti
6. Distinguish between Speed and Velocity?
7. Observe the following table and answer the questions.
Time (in speed) 0 4 8 12
Distance (in meters) 0 6 12 18 24
a) What kind of motion the object has ?
b) What is the speed of the graph drawn?
Answer the following questions.
8. Draw a neat sketch of the experimental arrangement to sho
167 ​

Answer 1

Explanation:

The time taken for both trains to meet is 1.333 hours or 80 minutes.

The distance between both the stations is 200 miles. Since both trains are coming towards each other i.e. approaching, they will meet when the sum of their distances travelled is 200 miles.

The speed of train starting from A is 70 mph while the speed of the train starting from B is 80 mph.

Using Laws of Kinematics:

Distance = speed x time

Assuming time taken to meet is t, the total distance travelled will be:

200 = (70 x t) + (80 x t)

200 = 150 x t

t = 20 / 15

t = 1.333 hours or 80 minutes

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