Please wait...

Laws of Motion Test - 85
Result
Laws of Motion Test - 85

  • /

    Score

  • -

    Rank
Time Taken: -
  • Question 1/10
    4 / -1
    A 20 kg block is initially at rest on a rough horizontal surface. A horizontal force of 75 N is required to set the block in motion. After it is in motion, a horizontal force of 60 N is required to keep the block moving with constant speed. The coefficient of static friction is
    Solutions

  • Question 2/10
    4 / -1
    A block A with mass 100 kg is resting on another block B of mass 200 kg. As shown in figure a horizontal rope tied to a wall holds it. The coefficient of friction between A and B is 0.2, while coefficient of friction between B and the ground is 0.3. The minimum required force F to start moving B will be

    Solutions

  • Question 3/10
    4 / -1
    A box is lying on a inclined plane what is the coefficient of static friction, if the box starts sliding when an angle of inclination is 60°
    Solutions

  • Question 4/10
    4 / -1
    A block of mass 2 kg is kept on the floor. The coefficient of static friction is 0.4. If a force F of 2.5 Newton\'s is applied on the block as shown in the figure, the frictional force between the block and the floor will be

    Solutions

  • Question 5/10
    4 / -1
    If a ladder weighing 250 N is placed against a smooth vertical wall having coefficient of friction between it and floor is 0.3, then what is the maximum force of friction available at the point of contact between the ladder and the
    Solutions

  • Question 6/10
    4 / -1
    Which activity is not based upon friction
  • Question 7/10
    4 / -1
    The maximum speed that can be achieved without skidding by a car on a circular unbanked road of radius R and coefficient of static friction µ, is
    Solutions

  • Question 8/10
    4 / -1
    A body of mass 2 kg is being dragged with uniform velocity of 2 m/s on a rough horizontal plane. The coefficient of friction between the body and the surface is 0.20. The amount of heat generated in 5 sec is= 4.2 j/cal and g = 9.8 m/s2)
    Solutions

  • Question 9/10
    4 / -1
    Two carts of masses 200 kg and 300 kg on horizontal rails are pushed apart. Suppose the coefficient of friction between the carts and the rails are same. If the 200 kg cart travels a distance of 36 m and stops, then the distance travelled by the cart weighing 300 kg is

    Solutions

  • Question 10/10
    4 / -1
    A body B lies on a smooth horizontal table and another body A is placed on B. The coefficient of friction between A and B is g. What acceleration give to B will cause slipping to occur between A and B
    Solutions

User Profile
-

Correct (-)

Wrong (-)

Skipped (-)

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Click on Allow to receive notifications
×
Open Now