Spring Scale

A beaker of mass 1 kg contains 2 kg of water and rests on a scale. A 2kg block of aluminum (specific gravity 2.70) suspended from a spring scale is suspended from a spring scale is submerged in water, as shown in figure. Find the readings of both scales.

A rock is found to weigh w in air when suspended from a spring scale. When completely submerged in water while attached to the spring scale, it weighs w_("submerged") as shown in Fig. Find the density of the rock rho_("rock") in terms of Rock the scale reading and the density of water

In the systems shown in figure (A), (B), (C) and (D), the scales of the springs are calibrated in newton Assume that Pulleys are massless and frictionless Strings are massless The surface in figure (D) is frictionless Reading of the spring scale in figure (C) is

In the systems shown in figure (A), (B), (C) and (D), the scales of the springs are calibrated in newton Assume that Pulleys are massless and frictionless Strings are massless The surface in figure (D) is frictionless Reading of the spring scale in figure (B) is

In the systems shown in figure (A), (B), (C) and (D), the scales of the springs are calibrated in newton Assume that Pulleys are massless and frictionless Strings are massless The surface in figure (D) is frictionless Reading of the spring scale in figure (D) is

In the systems shown in figure (A), (B), (C) and (D), the scales of the springs are calibrated in newton Assume that Pulleys are massless and frictionless Strings are massless The surface in figure (D) is frictionless Reading of the spring scale in figure (A) is

A beaker containing water is kept on a spring scale. The mass of water and beaker is 5 kg . A block of mass 2 kg and specific gravity 10 is suspended by means of thread from a spring balance as shown. The readings of scales S_(1) " and " S_(2) are respectively Take, g=10 ms^(-2)

A person weighting 400N stands on spring scales in an elevator that is moving downward with constant speed of 4m/s the brakes suddenly grab, bringing the elevator to a stop in 1.8 s. Describe the scale readings from just before the brakes grab until after the elevator is at rest.

A 50 kg boy stands on a platform spring scale in a lift that is going down with a constant speed 3 ms^(-1) . If the lift is brought to rest by a constant deceleration in a distance of 9 m, what does the scale read during this period ? ( Take , g=9.8 ms^(-2) )