You visited us 9 times! Enjoying our articles? Unlock Full Access!

v-t Graph

Figure repres...

Question

Figure represents the displacement-time graph of motion of two cars A and B. Find the velocities of car A and car B.

v_{A} = 20 k m h^{- 1}, v_{B} = 10 k m h^{- 1}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

v_{A} = 10 k m h^{- 1}, v_{B} = 20 k m h^{- 1}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

v_{A} = 20 k m h^{- 1}, v_{B} = 40 k m h^{- 1}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

v_{A} = 40 k m h^{- 1}, v_{B} = 20 k m h^{- 1}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D $v_{A} = 40 k m h^{- 1}, v_{B} = 20 k m h^{- 1}$
For the time interval of $4 h$ ,
Displacement of car A, $D_{A} = 160 k m$
Velocity of car A, $v_{A} = \frac{160 k m}{4 h} = 40 k m / h$
Displacement of car B, $D_{B} = 120 k m - 40 k m = 80 k m$
Velocity of car B, $v_{B} = \frac{80 k m}{4 h} = 20 k m / h$

Suggest Corrections

Similar questions

Q. A car travels on paths A, B and C within the same time and has velocities

V_{A}

V_{B}

and

V_{C}

respectively on each path. These paths pass through a group of equally spaced lines. Pick the correct ranking of velocities.

Q. A car travels from

A

B

at a speed of

20 k m h^{- 1}

and returns at a speed of

40 k m h^{- 1}

. What is the average velocity of the car for the whole journey.?

Q. Let

v_{A}

and

v_{B}

be the velocities of the particles A and B respectively at the moment A and B meet after start of the motion. If

u_{A} = 5 m s^{- 1}

and

u_{B} = 15 m s^{- 1},

then the magnitude of the difference of velocities

v_{A}

and

v_{B}

A, B and C are voltmeters of resistance R,1.5 R and 3R respectively as shown in the figure.When some potential difference is applied between X and Y, the voltmeter readings are $V_{A}, V_{B}$ and $V_{C}$ respectively.Then :

Q. A car traveled a distance of

100 k m

2 h o u r s

. Find the average speed of the car.

Join BYJU'S Learning Program

Figure represents the displacement-time graph of motion of two cars A and B. Find the velocities of car A and car B.

The correct option is D vA=40kmh−1,vB=20kmh−1For the time interval of 4h,Displacement of car A, DA=160kmVelocity of car A, vA=160km4h=40km/hDisplacement of car B, DB=120km−40km=80kmVelocity of car B, vB=80km4h=20km/h