Question 13 in attached picture. Answer is c
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Question 13 in attached picture. Answer is c .
Transcribed Image Text:A man is rotating a stone of mass 10 kg tied at the end of a light rope in a circle of radius 1m. To
do this, he continuously moves his hand in a circle of radius 0.6 m. Assume, both circular motions
to be occurring in the same horizontal plane. VWhat is the maximum speed with which he can
throw the stone, if he can exert a pull not exceeding 1250 N on the string.
(A) 10/2 m/s
C) 10 m/s
13.
(B) 5/5 m/s
(D) 20 m/s
A stone is projected in air directed at an angle 0 above the horizontal.
The maximum angle of projection 0 with the horizontal so that the
stone always moves away from the thrower during its motion in air, is
(neglect air resistance)
4.
1
(A) sin-1
3
(B) sin
V8
-1 v5
(C) sin
3
(D) sin
3
A particle moves along a circle of radius R = 10m with retardation so that at any time the modulu
of tangential acceleration is twice the modulus of normal acceleration. If initial speed of th
particle is vo = 20m/s. Then the speed of the particle after having covered a distance s = 10
would be (take e = 0.135)
(A) 1.7 m/s
(C) 3.7 m/s
%3D
%3D
B2.7 m/s
(D) 4.7 m/s
6 nails have been fixed on ground such that they
form a hypothetical regular hexagon of side 1 m. A
v = (T/24) m/s
2/3
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