KinematicsHard
Question
Which of the following statement are true for a moving body ?
Options
A.If its speed changes, its speeds must change and it must have some acceleration
B.If its velocity changes, its speeds must and it must have some acceleration
C.If it velocity changes its speed may or may not change, and it must have some acceleration
D.If its speed changes but direction of motion does not change, its velocity may remain constant
Solution
= |
| 
; [|
| → speed]Velocity may change by changing either speed or direction and by both.
Create a free account to view solution
View Solution FreeMore Kinematics Questions
If the radii circular path of two particles are in the ratio of 1 : 2, then in order same cwntripltal acceleration their...A particle of mass m moves along a curve y = x2. When particle has x-co-ordinate as 1/2 and x - component of velocity as...A particle is moving in x - y plane at 2 m/s along x - axis. 2 seconds later, its velocity is 4 m/s in a direction makin...A man starts tuning along a straight with uniform velocity feels that the rain is falling vertically down along ĵ ....In projectile motion assuming no air drag let t0A = t1 and tAB. The horizontal displacement from O to A is R1 and from A...