CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Finding Average Velocity

A particle mo...

Question

A particle moves in a straight line with constant speed of $4 m / s$ for $2 s,$ then with $6 m / s$ for $3 s .$ The average speed of the particle in the given time interval be $v .$ Find $[v] . ($ where, $[]$ is step integer function $)$

Open in App

Solution

Total time $, T = 2 + 3 = 5 s$
Total distance $, D = 4 \times 2 + 6 \times 3 = 26 m$
Thus, average speed $= D / T = 26 / 5 = 5.2$
Thus $, [x] = 5$

Suggest Corrections

thumbs-up

0

Similar questions

Q. A particle moves in straight line with velocity

6 m/s

3 m/s

for time intervals which are in the ratio

1 : 2

. Find average velocity of the particle.

Q. A particle travels half of the distance of a straight journey with a speed

6 m / s

. The remaining part of the distance is covered with speed

2 m / s

for half of the time and with speed

4 m / s

for other half of time. The average speed of the particle is :

Q. A particle moves along a straight line and its velocity depends on time as

v = 6 t - 3 t^{2}

v

m/s

t

in seconds. Find the average speed for first 4 seconds. (in

m/s

Q. A particle moves on a straight line in such way that it covers

1 s t

half distance with speed

3 m / s

and next half distance in

2

equal time intervals with speeds

4.5 m / s

7.5 m / s

respectively. Find average speed of the particle.

Q. A particle travels half of the time with constant speed

2 m / s

. In remaining half of the time if travels,

\frac{1}{4} t h

distance with constant speed of

4 m / s

\frac{3}{4} t h

6 m / s

. Find average speed during the complete journey.

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Speed and Velocity

PHYSICS

Watch in App

explore_more_icon

Explore more

Finding Average Velocity

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon