Home
Class 12
PHYSICS
In which of the following cases is the n...

In which of the following cases is the normal contact force between stationary block M and surface impulsive?

A

B

C

D

None of these

Text Solution

AI Generated Solution

The correct Answer is:
To determine in which case the normal contact force between the stationary block M and the surface is impulsive, we will analyze each option step by step. ### Step 1: Understanding Impulsive Forces An impulsive force is a force that acts for a very short duration of time, typically during a collision or a sudden impact. It is characterized by a large magnitude and a short time interval. In the context of normal forces, an impulsive normal force occurs when there is a sudden change in momentum or a rapid change in the state of motion of the objects involved. ### Step 2: Analyzing Each Option 1. **Option 1**: A block M is sliding down an incline with a certain velocity. - In this scenario, the block is in motion, and the normal force acts perpendicular to the surface of the incline. Since the block is not experiencing any sudden impact or change in motion, the normal force is not impulsive. 2. **Option 2**: A small mass block m is moving horizontally at a velocity while in contact with a stationary surface. - Here, the block is moving with a constant velocity, and the normal force acts vertically upward from the surface. There is no sudden change in motion or impact, so the normal force is not impulsive. 3. **Option 3**: A small block mass m is in contact with a large block mass M at an angle. - In this case, if the large block M experiences a sudden force (for example, if it is pushed or if there is a sudden change in its state), the normal force between the two blocks can become impulsive. This is due to the interaction between the two blocks, where the normal force reacts to the sudden change in motion of the larger block. ### Conclusion Based on the analysis, the normal contact force between the stationary block M and the surface is impulsive in **Option 3**.
To determine in which case the normal contact force between the stationary block M and the surface is impulsive, we will analyze each option step by step. ### Step 1: Understanding Impulsive Forces An impulsive force is a force that acts for a very short duration of time, typically during a collision or a sudden impact. It is characterized by a large magnitude and a short time interval. In the context of normal forces, an impulsive normal force occurs when there is a sudden change in momentum or a rapid change in the state of motion of the objects involved. ### Step 2: Analyzing Each Option 1. **Option 1**: A block M is sliding down an incline with a certain velocity. - In this scenario, the block is in motion, and the normal force acts perpendicular to the surface of the incline. Since the block is not experiencing any sudden impact or change in motion, the normal force is not impulsive. ...
Promotional Banner

Similar Questions

Explore conceptually related problems

A block of mass m is stationary on a horizontal surface. It is connected with a string which has no tension. The coefficient of friction between the block and surface is m . Then , the frictional force between the block and surface is:

A rectangular block of mass M and height a is resting on a smooth level surface. A force F is applied to one corner as shown in Fig. At what point should a parallel force 3F be applied in order that the block shall undergo pure translational motion? Assume normal contact force a between the block and surface passes through the centre of gravity of the block.

In all the given cases block are in contact and the forces are applied as shown. All the surfaces are smooth. Then in whhich of the following cases, normal reaction between the two blocks is zero.

A block of mass 2 m collides,elastically with a masss m kept at rest. Friction exists between the block B ,and surface with coefficient mu=0.3 , whereas no.friction exists between block A and the surface. Which of the following graphs best represent the distance between the blocks between first and second collision?

A block of mass m slides down an inclined plane of inclination theta with uniform speed. The coefficient of friction between the block and the plane is mu . The contact force between the block and the plane is

A block of mass m slides down an inclined plane of inclination theta with uniform speed The coefficient of friction between the block and the plane is mu . The contact force between the block and the plane is .

Two blocks of masses '3m' and '2m' are in contact on a smooth table. A force P is first applied horizontally on block of mass '3m' and then on mass '2m'. The contact forces between the two blocks in the two cases are in the ratio?

If F_(i) and F_(g) are the frictional force between surface of contact from iron and glass material, then which of the following relation is correct ? Assume that there are same normal reaction on both the surfaces.