A car travels a distance of 15 km in 20 minutes . Find the speed of the car in km h - 1 .

Given, Distance travelled, d = 15 km Time taken, t = 20 minutes = 20 60 = 1 3 h Speed of the car in km h - 1 is given by, Speed = Distance time = 15 km 1 3 h Speed = 45 km h - 1 .

A bus takes 15 hours to travel from town X to town Y and 12 hours to travel from town Y to Z. Is the speed of the bus increasing or decreasing from town 'Y' to 'Z' as compared to the speed from 'X' to 'Y'? Find out.

Given that, Distance from town 'X' to town 'Y' is = 700 km Distance from town 'Y to town 'Z' is = 520 km Time taken by the bus from X to Y is = 15 hours = 15 h Time taken by the bus from Y to Z is = 12 hours = 12 h We know that, Speed = Distance travelled Time taken Speed of the bus from town 'X' to town 'Y' is = 700 15 = 46 . 67 km h - 1 . Similarly, speed of the bus from town 'Y' to town 'Z' is = 520 12 = 43 . 3 km h - 1 . Therefore, speed of the bus is decreasing, when it is traveling from town 'Y' to town 'Z'.

A bus takes 15 hours to travel from town X to town Y and 12 hours to travel from town Y to Z. What is the average speed of the bus throughout journey?

Given that, Total distance from town 'X' to town 'Y' and town 'Y to town 'Z' is = 700 km + 520 km = 1220 km Total time taken by the bus from X to Y and Y to Z is = 15 hours + 12 hours = 15 h + 12 h = 27 h We know that, Average speed = Total distance travelled Total time taken = 1220 27 = 45 . 2 km h - 1

A bus takes 15 hours to travel from town X and Y and 12 hours to travel from town Y to Z. Calculate the speed of the bus from town 'X' to town 'Y'.

Given that, Distance from X to Y is = 700 km Time taken by the bus from X to Y is = 15 hours = 15 h We know that, Speed = Distance travelled time taken = 700 15 = 46 . 67 km h - 1 Speed of the bus from town 'X' to town 'Y' is 46 . 67 km h - 1 .

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The coordinates of a moving particles at any time $t$ are given by $x = α t^{3}$ and $y = β t^{3}$ . The speed of the particle at time $t$ is given by –

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Important Questions on Dynamics

EASY

Mathematics>Statics and Dynamics>Dynamics>Basics of Dynamics

If work, force and time are represented by

A

B

and

C

respectively then the term

(\frac{A}{B C}) w i l l p r e s e n t

EASY

Mathematics>Statics and Dynamics>Dynamics>Basics of Dynamics

A boy covers a distance of

260 m

20 s

and another distance of

300 m

20 s

. The average speed of the boy is :

EASY

Mathematics>Statics and Dynamics>Dynamics>Basics of Dynamics

A car travels half distance with speed

20 m s^{- 1}

and next half distance travel with

30 m s^{- 1}

the average speed of the car is

EASY

Mathematics>Statics and Dynamics>Dynamics>Basics of Dynamics

If force, momentum, and displacement are represented by

A

B

and

C

respectively then the term

[\frac{A C}{B}]

will represent:

EASY

Mathematics>Statics and Dynamics>Dynamics>Basics of Dynamics

Define average speed. What are its units? How can it be measured?

MEDIUM

Mathematics>Statics and Dynamics>Dynamics>Basics of Dynamics

A car travels a distance of

15 km

20 minutes

. Find the speed of the car in

km h^{- 1}

MEDIUM

Mathematics>Statics and Dynamics>Dynamics>Basics of Dynamics

Write the S.I. unit of speed.

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Mathematics>Statics and Dynamics>Dynamics>Basics of Dynamics

How do you determine the average speed of a body in non-uniform motion ?

EASY

Mathematics>Statics and Dynamics>Dynamics>Basics of Dynamics

A train took

11.5 minutes

to travel

10 km

from station A to B. It stopped at station B for

30 seconds

then took another

24 minutes

to travel

20 km

from station B to C. What was the average speed of the train?

EASY

Mathematics>Statics and Dynamics>Dynamics>Basics of Dynamics

Rate of change of displacement is called ____________ .

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Mathematics>Statics and Dynamics>Dynamics>Basics of Dynamics

A bus takes $15 hours$ to travel from town X to town Y and $12 hours$ to travel from town Y to Z.

Question Image

Is the speed of the bus increasing or decreasing from town 'Y' to 'Z' as compared to the speed from 'X' to 'Y'? Find out.

MEDIUM

Mathematics>Statics and Dynamics>Dynamics>Basics of Dynamics

Explain the meaning of the term speed.

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Mathematics>Statics and Dynamics>Dynamics>Basics of Dynamics

Which statement correctly describes speed?

MEDIUM

Mathematics>Statics and Dynamics>Dynamics>Basics of Dynamics

How long a train will take to travel a distance of

200 km

with a speed of

60 km h^{- 1}

EASY

Mathematics>Statics and Dynamics>Dynamics>Basics of Dynamics

Distance travelled by an object in unit time is referred to as?

EASY

Mathematics>Statics and Dynamics>Dynamics>Basics of Dynamics

A bus takes $15 hours$ to travel from town X to town Y and $12 hours$ to travel from town Y to Z.

Question Image

What is the average speed of the bus throughout journey?

EASY

Mathematics>Statics and Dynamics>Dynamics>Basics of Dynamics

In a flat, the lift takes

15 s

to go from ground floor to the fourth floor without stopping. If the height of each floor is

5 m

, what is the average speed of the lift?

MEDIUM

Mathematics>Statics and Dynamics>Dynamics>Basics of Dynamics

The odometer of a car reads

57321.0 km

when the clock shows the time at

08 : 30 AM

. What is the distance moved by car, if at

08 : 50 AM

, the odometer reading has changed to

57336.0 km

? Calculate the speed of the car in

km / \min

during this time. Express the speed in

km / h

also.

MEDIUM

Mathematics>Statics and Dynamics>Dynamics>Basics of Dynamics

A boy travels with a speed of

10 m s^{- 1}

for

30 minutes

. How much distance does he travel?

EASY

Mathematics>Statics and Dynamics>Dynamics>Basics of Dynamics

A bus takes $15 hours$ to travel from town X and Y and $12 hours$ to travel from town Y to Z.

Question Image

Calculate the speed of the bus from town 'X' to town 'Y'.

The coordinates of a moving particles at any time t are given by x=α t 3 and y=β t 3 . The speed of the particle at time t is given by –

Important Questions on Dynamics

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The coordinates of a moving particles at any time $t$ are given by $x = α t^{3}$ and $y = β t^{3}$ . The speed of the particle at time $t$ is given by –