Introduction to Speed

Q.

The train is moving at a uniform speed of 80 km/h. How far will it go in 15 minutes?

1. 10 km

2. 15 km

3. 20 km

4. 13.33 km

Q.

Find the speed of vehicles which cover:
(a) A distance of 600 km in 8 hours.
(b) A distance of 294 km in 7 hours.
(c) A distance of 1368 m in 18 seconds.

1. 72 km/h, 40 km/h, 70 m/s

2. 45 km/h, 32 km/h, 80 m/s

3. 75 km/h, 40 km/h, 73 m/s

4. 75 km/h, 42 km/h, 76 m/s

Q. John covered a part of his journey at $20\text{kmph}$, and the remaining part at $70\text{kmph}$. He took a total of $8\text{hr}$ to cover a distance of $400\text{km}$. For how much time did he travel at $20\text{kmph}$?

1. $3\text{hr}$ and $12\text{min}$
2. $4\text{hr}$ and $12\text{min}$
3. $3\text{hr}$ and $20\text{min}$
4. $4\text{hr}$ and $40\text{min}$

Q.

$\begin{array}{ccc}\text{v (metre/second)}& \text{t (second)}& \text{s(metre)}\\ 10& 2& a\\ -40& 2& b\\ -10& 2& c\\ -20& 2& d\end{array}$

s = vt gives the relation between distance, speed and time in the given equation. Select the statements that hold true.

1. a = 20 m

2. b = -80 m

3. c = -20 m

4. d = 40 m

Q.

If a racing car covers 1000 km in 4 hours then find its speed.

1. 250 km/h

2. 50 km/h

3. 150 km/h

4. 200 km/h

Q.

A train-K whose length is 200 m, passes a train-B (which is not moving) of 400 m long in 15 s. Find the speed of the train-K.

1. 100 m/s

2. 40 m/s

3. 20 m/s

4. 50 m/s

Q.

If a racing car covers 200 km in 2 hours then find its speed.

1. 10 kmph

2. 20 kmph

3. 25 kmph

4. 100 km/h

Q.

If a racing car covers 500 km in 4 hours then find its speed.

1. 250 km/h

2. 100 km/h

3. 125 km/h

4. 25 km/h

Q.

A car is travelling at a speed of 40 m/s. Find the distance covered in 2 seconds.

1. 70 m

2. 20 m

3. 80 m

4. 90 m

Q.

Which of the following relations is correct?

1. Speed = Distance x Time

2. Speed = Time/Distance

3. Speed = Distance/Time

4. Speed = 1/Distance x Time