// //]]>
Get a free home demo of LearnNext

Available for CBSE, ICSE and State Board syllabus.
Call our LearnNext Expert on 1800 419 1234 (tollfree)
OR submit details below for a call back

clear

Question & Answer Forum

Next time you have a doubt while studying, you know where to go. By simply posting your questions on Question & Answer Forum, you can have them answered by academic experts. You can also find related videos and explanations for better understanding.

Can’t find a match Ask?

Syeda answered 1 year(s) , 10 month(s) ago

What is difference between speed and velocity?


Answer.
                      SPEED                     VELOCITY 1. It is defined as the rate of change of distance. It is defined as the rate of change o...

Asked by Ashmit

May 18

  • 2 Answers
  • 14 Likes
  • 94979 Views
Manoharan commented 3 year(s) , 9 month(s) ago

Derivation of equations of motion

Derivation of The Equations of Motion


Derivation of S = ut + ½ at2


Derivation of v2 - u2<...

Asked by Manoharan

Jun 28

  • 1 Answer
  • 19 Likes
  • 84331 Views
Nagender commented 1 year(s) , 10 month(s) ago

brief summary of novel the three men in a boat 1st term

SUMMARY OF THREE MEN IN A BOAT -

Three friends named Jerome, George, and Harris smoke together in their apartment in London. They are all hypochondriacs and discuss their illnesses. After researchin

...

Asked by Dazzler

Jan 12

  • 11 Answers
  • 59 Likes
  • 80287 Views
Syeda answered 1 year(s) , 10 month(s) ago

a farmer moves along the boundary of a square field of side 10 m in 40 seconds.what will be the magnitude of displacement of the farmer at the end of 2 minutes 20 seconds from his initial position?

 
Answer:
Total distance 40m in 40 sec.
Total time taken by the farmer = 2 min 20 sec. =140 seconds.
Total rounds completed= 140/40=3.5 rounds
That mean...

Asked by Mohammed

May 21

  • 8 Answers
  • 5 Likes
  • 67228 Views
Joel answered 1 year(s) , 6 month(s) ago

Define retardation.

The velocity of body decrease with time the motion is said to be retardation *the opposite of accelaration

Asked by Izaan

May 19

  • 3 Answers
  • 4 Likes
  • 31696 Views
Syeda answered 4 month(s) , 5 day(s) ago

Change the speed of 6m/s into km/h?

Since we know that,


therefore, 6 m/sec = (6 x 18) / 5 =21.6 km/hr

Asked by Somnath

Jun 4

  • 6 Answers
  • 5 Likes
  • 30424 Views
Janhavi answered 4 year(s) , 7 month(s) ago

Difference between distance and displacement

1. Distance is the length of the path travelled by a body in certain interval of time, whereas displacement is the shortest distance between the initial and final positions of a body.
2. Distance is a s...

Asked by Tanvi

Sep 8

  • 1 Answer
  • 4 Likes
  • 26059 Views
Amarnathreddy answered 5 year(s) , 6 month(s) ago

all chapters formula

1. S= ut +(1/2) at 2
2. v = u + at
3. v 2-u 2 = 2as
4. F = M(v-u)/t
5. F = ma
6. W = F.S cos θ
7. p = w/t

Asked by Debasmita

Sep 29

  • 1 Answer
  • 4 Likes
  • 25566 Views
Syeda answered 1 year(s) , 10 month(s) ago

On a 120 km track, a train travels the first 30 km at a uniform speed of 30 km/h. How fast must the train travel the next 90 km so as to average 60 km/h for the entire trip ?

Speed of the train in the first 30 km, v1 = 30 km/h
Speed of the train in the next 90 km, v2 (to be determined)
Average speed = 60 km/h = (v1 + v2)/2 
                                   ...

Asked by Kirubes

Jun 28

  • 2 Answers
  • 2 Likes
  • 24795 Views
Syeda answered 1 year(s) , 10 month(s) ago

What does the odometer of an automobile measure?

What does the odometer of an automobile measure?
 
Answer: Odometer is a device that measures the distance travelled by an automobile based on the perimeter of...

Asked by Letusknowwhy

Mar 28

  • 2 Answers
  • 5 Likes
  • 21950 Views
Agam answered 11 month(s) , 24 day(s) ago

particle moves 3m north,then 4m east,and finally 6m south.calculate the distance travelled and the displacement?

Distsance=(3+4+6)m = 13m
(Displacement) 2 =3 2+4 2 =9+16 = 25 = (5m) 2
So,Displacement= 5m

Asked by Navi

Jul 13

  • 2 Answers
  • 3 Likes
  • 20753 Views
Gaurav answered 5 year(s) , 1 month(s) ago

Distinguish between distance and displacement

Distance :

1. distance travelled by a body is defined as the actual length of the path travelled by the body irrespective of its drection of motion.

2. Distance is a scalar quantity

...

Asked by Letusknowwhy

Feb 13

  • 1 Answer
  • 5 Likes
  • 20183 Views
Meghna commented 5 year(s) , 8 month(s) ago

Physics (Motion) Numericals.


Solution:          
 
   V=u+at

                0=0.5+(-0.05)t


                0.5= 0.05t

                t= 0.5/...

Asked by Meghna

Jul 20

  • 1 Answer
  • 3 Likes
  • 19351 Views
Amarnathreddy answered 5 year(s) , 6 month(s) ago

under what condition magnitude of displacement is equal to distance?

Under which condition does the magnitude of displacement equals to distance?
As we know the displacement is the shortest distance between the initial and final positions.
And the distance is the...

Asked by Divyanshu

Sep 28

  • 2 Answers
  • 2 Likes
  • 18962 Views
Kirubes answered 4 year(s) , 8 month(s) ago

Derivation of equation of displacement of a body in nth second

in s=ut+1/2*at square 
subs. n infront of t
you will get the ansewer easily

Asked by Trissha

Jul 12

  • 2 Answers
  • 0 Like
  • 17933 Views
Syeda answered 1 year(s) , 10 month(s) ago

define and write SI units of 1.velocity 2.Acceleration 3.displacement 4. average speed

Answer.

S.I unit of velocity is m/s
 
S.I unit acceleration is m/s 2
 
S.I unit of displacement is meter
 
S.I unit of average speed i...

Asked by Anshuman

May 14

  • 2 Answers
  • 0 Like
  • 17384 Views
Amarnathreddy answered 3 year(s) , 9 month(s) ago

Please give examples for uniformly accelerated motion.

A body is said to be moving with a uniform accelaratin if it chnges its velocity equally in equal intervals of time

In other words

If a body changes its velocity at a uniform rat...

Asked by Soundharya

Jun 7

  • 2 Answers
  • 1 Like
  • 16555 Views
Syeda answered 1 year(s) , 10 month(s) ago

The SI unit of retardation is

Answer.

    The SI unit of retardation is the same as that of acceleration, that is metre per second squared  (m/s 2)       

Asked by Suruthika

Jul 10

  • 2 Answers
  • 3 Likes
  • 14669 Views
Like NextGurukul? Also explore our advanced self-learning solution LearnNext
Offered for classes 6-12, LearnNext is a popular self-learning solution for students who strive for excellence
Explore
Animated Video
lessons
All India
Test Series
Interactive Video
Experiments
Best-in class
books

Join India's most happening

Educational community