Subject :NSO Class : Class 7
In the figure shown, PQRS is a rectangular smooth tube kept fixed in a vertical plane. A particle is projected from point P to reach point R with same speed for both the paths PSR and PQR. At the corners Q and S velocity changes its direction by 90° without any change of its magnitude. If time taken for the paths PQR and PSR are t1 and t2 respectively, then (given l > b)
A
B
C
D
Ans 1:
Class : Class 8
how??
Ans 2:
Class : Class 7
please provide a correct solution for this question