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Subject: Science, asked on 23/5/18

A car travelling at 30km/h speeds up to 60km/h in 6 seconds. What is the acceleration?

Subject: Science, asked on 23/5/18




a)  How much time she takes to reach her friend's house?
b)  What is the distance travelled by the girl during the time interval 0 to 12 minute?
c)  During which time interval she is moving towards her house?
d)  For how many minutes she was at rest, during the entire journey?
e)  Calculate the speed by which she returned home.

Subject: Science, asked on 20/5/18


Q. How to derive S = ut + 1/2 at2?

 

Subject: Science, asked on 7/5/18

How to verify that v = u + at ?

Subject: Science, asked on 24/4/18

A body covers half of its journey with speed
a m/s (variable) and the other half with b m/s (variable). Calculate the average speed of the object during the whole journey.

Subject: Science, asked on 5/4/18

plz answer fast q 1,2 and 3

​Q1. An object has moved through a distance. Can it have zero displacement? If yes, support your answer with an example.


Q2. A farmer moves along the boundary of a square field of side 10 m in 40 s. What will be the magnitude of displacement of the farmer at the end of 2 minutes 20 seconds from his initial position ?


Q3. Which of the following is true for displacement ?

       (a) It cannot be zero.

       (b) Its magnitude is greater than the distance travelled by the object.

Subject: Science, asked on 25/12/17

This statement is false why
A body is at rest at t=0 so its acceleration at t=0 must be 0

Subject: Science, asked on 25/12/17

Q4

Q4. How is the position of a moving particle along a straight line described by a number ? How is the direction of motion specified by the number describing position ?
 

Subject: Science, asked on 15/11/17

Q 15 answer with explanation

15.  A body is moving with constant acceleration from A to B in a straight line. C is the mid-point of AB. If u and v are the speeds at A and B respectively. The speed at C is :


(A)  u + v2                                           (B)  v - u2(C)  u2 + v22                                     (D)  v2 - u22

Subject: Science, asked on 20/6/17

What is Tangent of an object in uniform Circular Motion??Define Tangent with an illustrative example...

Subject: Science, asked on 29/5/22

Define motion and give two differences between uniform motion and non uniform motion 

Subject: Science, asked on 28/5/22

Difference between uniform and know uniform motion

Subject: Science, asked on 10/4/22

Experts please solve number m

Subject: Science, asked on 18/3/22

Phy advance question 12

Subject: Science, asked on 17/9/19

Acceleration of an object with constant velocity is ________

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