Question

Q23.

​Q23. A bead starts sliding from a point P on a frictionless wire with initial velocity of 5 ms–1. Find the velocity of bead at point R (take g = 10 ms–2)

(1) 7 m /s

(2) 5√2 m/s

(3) 6 √2 m/s

(4) 6 m /s

.

Answer 1

here the initial velocity is u = 5 ms

and g =10ms

and total height is point p height -point R height

then by using the formula Vsquare =Usquare +2gh

then u can find the final velocity at the point R