Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 12-science Answered

Hi..tick the correct option
question image
Asked by jain.pradeep | 01 May, 2019, 07:11: PM
answered-by-expert Expert Answer
(12) when a body is projcted vertically upwards, its height h as a function of time t is given by, h =ut-(1/2)gt2 ,
where u is initial speed, g is acceleration due to gravity. h(t) is a quadratic function in time t,
vertical distance travelled per given interval of time keep on decreasing. 
 
Hence graph(C) shows the variation of height with respect to time t
 
(13) when an object is moving without any external force, its speed is constant.
Hence graph(B) shows the constant speed with respect to time t
 
(14) when a body is pulled by a horizontal net force, if force is constant, then it is subjected to uniform acceleration a .
Displacemnt S for this movemenr of this body, S = (1/2)at2 , a quadratic function in time t. 
Distance moved in equal interval of time keep on increasing. Hence graph(D) shows this kind of motion
Answered by Thiyagarajan K | 02 May, 2019, 09:35: AM
CBSE 12-science - Physics
Asked by mishrigupta19319 | 08 Apr, 2024, 06:28: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by madhav9119887644 | 07 Apr, 2024, 08:10: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by mishrigupta19319 | 07 Apr, 2024, 11:23: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by adityagalar2007 | 06 Apr, 2024, 01:06: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by amlanmcob | 06 Apr, 2024, 12:27: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by manishamunda787 | 02 Apr, 2024, 11:07: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by mailtoanjalip2005 | 16 Mar, 2024, 08:22: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×