In the figure, the coefficient of friction between the floor and body B is 0.1. The coefficient of friction between bodies B and A is 0.2. A force F is applied as shown on B. The mass of A is rn/2 and of B is m.
(a) | The bodies will move together if F = 0.25 mg |
(b) | The A will slip with B if F = 0.5 mg |
(c) | The bodies will move together if F = 0.5 mg |
(d) | The bodies will be at rest if F = 0.1 mg |
(e) | The maximum value of F for which the two bodies will move together is 0.45 mg |
Which of the following statement(s) is/are true?
1. (a, b, d, e)
2. (a, c, d, e)
3. (b, c, d)
4. (a, b, c)
Mass moves on a slope making an angle with the horizontal and is attached to mass by a string passing over a frictionless pulley as shown in the figure. The coefficient of friction between and the sloping surface is .
Which of the following statement/s is/are true?
1. (a, d)
2. (a, c)
3. (c, d)
4. (b, d)
In figure a body A of mass m slides on a plane inclined at angle to the horizontal and g is the coefficient of friction between A and the plane. A is connected by a light string passing over a frictionless pulley to another body B, also of mass m, sliding on a frictionless plane inclined at an angle to the horizontal.
(a) A will never move up the plane
(b) A will just start moving up the plane when
(c) For A to move up the plane, must always be greater than
(d) B will always slide down with a constant speed
Which of the following statement/s is/are true?
1. (b, c)
2. (c, d)
3. (a, c)
4. (a, d)