Relative Motion Doubt
While calculating time taken to reach Q, we should consider velocity of man wrt belt right? So that means time taken = 20/1.5 = 13.33secs
But the answer given is 10secs which we will get if we take velocity of man wrt ground
So why should we take velocity of man wrt ground instead of velocity of man wrt belt
13 Replies
@Gyro Gearloose
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.@Gyro Gearloose
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.i dont get it either if some ans ping me too
Vab = Va - Vb ( Va= Man velocity, Vab= relative velcoity btw man and belt, Vb= Belt velocity0
1.5 = Va - 0.5, Va= 2m/s
S = Vt, T = 20/2 = 10 secs
That's how the answer is, we didn't consider relative velocity of Belt with the man or The Belt individual velocity. Rather the velocity of the man
yeah I understood that but what is the logic behind taking velocity of man wrt ground instead of taking velocity of man wrt belt
what we are taking is not relative velocity of the man but the actual velocity of the man and the relation with belt etc were given to find it
it travels 20 m on the belt while belt is moving , we will take velocity wrt to bel no?
if we take absolute velocity we will have to conider belts moving
which will bring us back to relative velocity
bro one simple logic, when you calculate time take by you, u take relative velocity or your acutal velcotiy
*velocity
we take actualy velocity because we are moving on the ground , and the ground is not moving
that "actual velocity" is also just relative velocity , relative to ground
Bro it is a simple thing don't complicate it
What , I don't understand