Sir i m the sudent of IX C and want to ask you
Why it is that for a person sitting in a bus the trees at road side seems to move backward ?
This is called Relative Motion, Abhishek. There are different 'frames of reference' from which we perceive motion. For the person in the bus all things within the bus are 'relatively stationary' while all things outside are in 'motion.' Since the bus moves forward, with reference to the person in the bus the outside tree is moving backwards.
You will study more of this in Class XI. But if this interests you, we can discuss more right away!!
Nikhil
sir..!!
can you tell me the process of finding velocity in distance time graph
PANKAJ
IX-C
sir..
can you please explain me how to find out the second equation of motion by graphical method?
Ankur Sharma
IX-B
Sir, in case of bikes why the displacement is measured in CC
i would also be thankful if you can explain me concept of CC
Vipul Sharma
Vipul,
'cc' is the measurement of engine, cc = cubic capacity, the amount of fuel the engine can take in before compression stroke. cc is just a unit like cm and mm. Diffent bike models have different cc. This cc capacity is directly proportional to the power of the engine.
Nikhil
Q)sir can you tell the difference between distance-time graph and velocity time graph?
pankaj
ix-c
PANKAJ
IX-C
Can a body have a constant velocity but a varying speed?
hi..!! the answer is no , becouse velocity is directly proportional to speed .
constant speed with varying velocity is posible
PANKAJ
IX-C
Hi…
Speed is the magnitude of velocity, not considering its direction. Therefore with constant velocity, magnitude remains constant and hence speed remains the same…
However, direction of motion can change with magnitude and hence the speed remaining same. This happens in circular motion. In this case, since velocity comprises both magnitude and direction - it is varying (though the speed is constant.)
Arpit
sir,i have a question
Q:what is vector quantity and scaler quantity with eg.
Q:can a body have a uniform velocity with varying speed.
HI,I AM SHIVALIKA OF CLASS 9th A.
SCALAR Quantity: A quantity that has only magnitude is said as scalar quantity.eg:speed is a scalar quantity.
VECTOR QUANTITY: A quantity that has magnitude as well as direction and which follows same rule of addition as displacement do is called as VECTOR QUANTITY.eg:velocity is a vector quantity as it has both magnitude and direction.
sir, i wanna ask a question
under what condition is the magnitude of avg velocity equals to avg speed?
sir,
i have a query on this ques. pls help me to solve:
a ball is gently dropped from a height of 20 m if its velocity increases uniformly at the rate of
10 m/s squared with what velocity will it strike the ground? AFTER WHAT TIME WILL IT STRIKE THE GROUND?
SIMRAN GHAI
9-C
Hi Simran
The rate of increase in velocity is nothing else but acceleration. You have the distance as 20m, acceleration as 10m/s2. You can now easily apply the required formula for the time.
Arpit
GOOD MORNING NIKHIL SIR ,
I HAVE ONE QUESTION SIR I AM WORKING ON MY WEBSITE BUT I WANT TO CHANGE MY WALLPAPER OF THE SITE THAN WHAT DO I DO CAN U PLEASE TELL ME HOW ?
hii anamika i am honey ralhan of class ix a
it's theme not wallpaper
firstly you sign in in your website
then you go to site manager, then click to appearance,then click to themes & you choose your themes and click ok