A body is vibrating with simple harmonic motion of aplitude 5 cm frequency 10 vibrations per second. The maximum value of velocity in cm/s will be
A.3.14 cm/s
B.31.4 cm/s
C.314 cm/s
D.3140 cm/s
E.31400 cm/s
A.3.14 cm/s
B.31.4 cm/s
C.314 cm/s
D.3140 cm/s
E.31400 cm/s
A.When we are ascending in a lift with acceleration of 4.9 m/s2
B.When we are freely faling
C.We are orbiting in a satellite
D.We are at the centre of the earth
A.If friction is neglected, the reactions are always normal to the surfaces on contact
B.Friction always acts to oppose the relative motion of the free body
C.If static friction is acting, the value of the friction force may vary from zero to its maximum value
D.The force of friction is always normal to the surface
E.All of the above
A.at the highest position
B.at the lowest position
C.at the midway position
D.at none of the above
A.809 rad/min2
B.308/min2
C.502 rad/min2
D.683 rad/min2
A.Involute
B.Cycloid
C.Epicycloid
D.Centrode
E.Straight line
A.520 m/s2
B.640 m/s2
C.780 m/s2
D.870 m/s2
A.Nowton’s law
B.Corollary to Newton’s laws of motion
C.Mohr’s principle
D.D’ Alembert’s principle
E.Principle of dynamics
A.The density of milk decreases when cream is taken out of milk
B.A cyclist should move along a zig-zag path while ascending a steep hill
C.The linear velocity of bodies near the earth’s equator (due to rotation of earth) is more than the velocities of particles at the pole
D.The potential energy of a particle has the form Ep = k2x. The force acting on the particle is constant (k is a constant)