Home
Class 12
PHYSICS
a uniform beam, of length L and mass m =...

a uniform beam, of length L and mass m = 1.8 kg, is at rest on two scales. A uniform block, with mass M = 2.7 kg, is at rest on the beam, with its center a distance `L//4` from the beam's left end. What do the scales read?

Text Solution

AI Generated Solution

To solve the problem of finding the readings on the two scales when a uniform beam and a uniform block are at rest, we can follow these steps: ### Step 1: Identify the Forces Acting on the System - The beam has a mass \( m = 1.8 \, \text{kg} \), so its weight \( W_b = mg = 1.8 \times 9.8 \, \text{N} \). - The block has a mass \( M = 2.7 \, \text{kg} \), so its weight \( W_b = Mg = 2.7 \times 9.8 \, \text{N} \). - The beam is supported by two scales, which we will denote as \( R_1 \) (left scale) and \( R_2 \) (right scale). ### Step 2: Calculate the Total Weight ...
Promotional Banner

Topper's Solved these Questions

  • RIGID BODY DYNAMICS-II

    RESNICK AND HALLIDAY|Exercise EXAMPLE|1 Videos

  • RIGID BODY DYNAMICS-II

    RESNICK AND HALLIDAY|Exercise CHECKPOINT|4 Videos

  • RIGID BODY DYNAMICS - I

    RESNICK AND HALLIDAY|Exercise PRACTICE QUESTIONS (INTEGER TYPE))|3 Videos

  • TEMPERATURE, ZEROTH LAW OF THERMODYNAMICS AND THERMAL EXPANSION

    RESNICK AND HALLIDAY|Exercise PRACTICE QUETIONS (Integer Type)|4 Videos

Similar Questions

Explore conceptually related problems

A man of mass m stands at the left end of a uniform plank of length L and mass M, which lies on a frictionaless surface of ice. If the man walks to the other end of the plank, then by what distance does the plank slide on the ice?

The radius of gyration of a uniform rod of mass m and length l about an axis perpendicular to its length and at distance l/4 from its one end will be

One end of a thin uniform rod of length L and mass M_(1) is rivetted to the center of a uniform circular disc of radius r and mass M_(2) so that both are coplanar. The center of mass of the combination from the center of the disc is (Assume that the point of attachment is at the origin) 1) L ( M_(1) + M_(2) ) // 2 M_(1) 2) L M_(1) // 2 ( M_(1) + M_(2) ) 3) 2 ( M_(1) + M_(2) ) // L M_(1) 4) 2 L M_(1) // ( M_(1) + M_(2) )

An elevator accelrates upward at a constant rate. A uniform string of length L and mass m supports a small block of mass M that hangs from the celling of the elevator. The tension at distance l from the celling is T. the accelration of the elegvator is

Two uniform solid of masses m_(1) and m_(2) and radii r_(1) and r_(2) respectively, are connected at the ends of a uniform rod of length l and mass m . Find the moment of inertia of the system about an axis perpendicular to the rod and passing through a point at a distance of a from the centre of mass of the rod as shown in figure.

A thin uniform bar of length L and mass 8m lies on a smooth horizontal table .Two point masses m and 2 m are moving in the same horizontal plane from opposite sides of the bar with speeds 2v and v respectively .The masses stick to the bar after collision at a distances (L)/(3) and (L)/(6) respectively from the center of the bar if the bar starts rotating about its center of mass as result of collision the angular speed of the bar will be

A uniform rope of length 20 m and mass 5 kg is hanging vertically from a rigid support. A block of mass 4 kg is attached to the free end. The wave length of the transverse wave pulse at the lower end of the rope is 0.04 m. The wavelength of the same pulse as it reaches the top is

A uniform board of mass M and length L rests on two spring scales. A person of mass m stands at a distance l from one end as shown in Fig. (a) The board and person are at rest. What is the reading of the two scales?

A uniform rod of mass M and length L rests on two supports. A ball of mass m=M//3 is placed at distance L//8 from the center as shown. Find reactions at supports.

A uniform rod of length l and mass 2 m rests on a smooth horizontal table. A point mass m moving horizontally at right angles to the rod with velocity v collides with one end of the rod and sticks it. Then