270179 A brick of mass \(2 \mathrm{~kg}\) just begins to slide down on inclined plane at an angle of \(45^{\circ}\) with the horizontal. The force of friction will be

270180 The lengths of smooth \& rough inclined planes of inclination \(45^{\circ}\) is same. Times of sliding of a body on two surfaces is \(t_{1}, t_{2}\) and \(\mu=0.75\), then \(t_{1}: t_{2}=\)

270224 A cube of weight\(10 \mathrm{~N}\) rests on a rough inclined plane of slope 3 in 5 . The coefficient of friction is 0.6 . The minimum force necessary to start the cube moving up the plane is

270220 A body is sliding down an inclined plane forming an angle\(30^{\circ}\) with the horizontal. If the coefficient of friction is 0.3 then acceleration of the body is

270179 A brick of mass \(2 \mathrm{~kg}\) just begins to slide down on inclined plane at an angle of \(45^{\circ}\) with the horizontal. The force of friction will be

270180 The lengths of smooth \& rough inclined planes of inclination \(45^{\circ}\) is same. Times of sliding of a body on two surfaces is \(t_{1}, t_{2}\) and \(\mu=0.75\), then \(t_{1}: t_{2}=\)

270224 A cube of weight\(10 \mathrm{~N}\) rests on a rough inclined plane of slope 3 in 5 . The coefficient of friction is 0.6 . The minimum force necessary to start the cube moving up the plane is

270220 A body is sliding down an inclined plane forming an angle\(30^{\circ}\) with the horizontal. If the coefficient of friction is 0.3 then acceleration of the body is

270179 A brick of mass \(2 \mathrm{~kg}\) just begins to slide down on inclined plane at an angle of \(45^{\circ}\) with the horizontal. The force of friction will be

270180 The lengths of smooth \& rough inclined planes of inclination \(45^{\circ}\) is same. Times of sliding of a body on two surfaces is \(t_{1}, t_{2}\) and \(\mu=0.75\), then \(t_{1}: t_{2}=\)

270224 A cube of weight\(10 \mathrm{~N}\) rests on a rough inclined plane of slope 3 in 5 . The coefficient of friction is 0.6 . The minimum force necessary to start the cube moving up the plane is

270220 A body is sliding down an inclined plane forming an angle\(30^{\circ}\) with the horizontal. If the coefficient of friction is 0.3 then acceleration of the body is

270179 A brick of mass \(2 \mathrm{~kg}\) just begins to slide down on inclined plane at an angle of \(45^{\circ}\) with the horizontal. The force of friction will be

270180 The lengths of smooth \& rough inclined planes of inclination \(45^{\circ}\) is same. Times of sliding of a body on two surfaces is \(t_{1}, t_{2}\) and \(\mu=0.75\), then \(t_{1}: t_{2}=\)

270224 A cube of weight\(10 \mathrm{~N}\) rests on a rough inclined plane of slope 3 in 5 . The coefficient of friction is 0.6 . The minimum force necessary to start the cube moving up the plane is

270220 A body is sliding down an inclined plane forming an angle\(30^{\circ}\) with the horizontal. If the coefficient of friction is 0.3 then acceleration of the body is