Question

9. A ball rolling on ice with a velocity of 5-6 m/s stops after travelling 8 m. If g = 9.8 m/s2,
coefficient of friction is :
(a) 0.1
(b) 0.2
(d) 0.4
10. A particle will leave a vertical circle of radius r, when its velocity at the lowest point of the
circle is
(a) √2gr.
(b) √5gr
(c)√3gr
​

Answer 1

9. 0.1

10.

$\sqrt{2} gr$

Answer 2

Answer:

hiiiiiiiiiiiiiiiiiiiiiiii please thanks my all answer

Explanation:

....................