Question

In: Physics

(a) A block of mass m = 3.90 kg is suspended as shown in the diagram...

(a) A block of mass m = 3.90 kg is suspended as shown in the diagram below. Assume the pulley to be frictionless and the mass of the strings to be negligible. If the system is in equilibrium, what will be the reading of the spring scale in newtons? N

(b) Two blocks each of mass m = 3.90 kg are connected as shown in the diagram below. Assume the pulley to be frictionless and the mass of the strings to be negligible. If the system is in equilibrium, what will be the reading of the spring scale in newtons? N

(c) A block of mass m = 3.90 kg is in equilibrium on an incline plane of angle θ = 28.0° when connected as shown in the diagram below. Assume the mass of the strings to be negligible. If the system is in equilibrium, what will be the reading of the spring scale in newtons? N

Expert Solution

(b) Two blocks each of mass m = 3.93 kg are connected as shown in the diagram below.

If the system is in equilibrium, then the reading of the spring scale which will be given as :

we know that, F_N = m g

where, g = acceleration due to gravity = 9.8 m/s²

F_N = 2 (3.9 kg) (9.8 m/s²)

F_N = 76.4 N

(c) A block of mass m = 3.9 kg is in equilibrium on an incline plane of angle, = 28⁰ when connected as shown in the diagram below.

If the system is in equilibrium, then the reading of the spring scale which will be given as :

using an equation, we have

F_N = mg cos

where, m = mass of the block = 3.9 kg

= inclination angle = 28 degree

then, we have

F_N = (3.9 kg) (9.8 m/s²) cos 28⁰

F_N = (38.2 N) (0.8829)

F_N = 33.7 N

genius_generous answered 8 months ago

The diagram below shows a block of mass m = 2.00 kg on a frictionless horizontal...

The diagram below shows a block of mass m = 2.00 kg on a frictionless horizontal surface, as seen from above. Three forces of magnitudes F1 = 4.00 N, F 2 = 6.00 N, and F 3 = 8.00 N are applied to the block, initially at rest on the surface, at angles shown on the diagram. In this problem, you will determine the resultant (total) force vector from the combination of the three individual force vectors. All angles...

Suspended Mass (kg) Weight of Suspended Mass (mass x 9.8 m/s2), Newtons Time (sec) Average Time...

Suspended Mass (kg) Weight of Suspended Mass (mass x 9.8 m/s2), Newtons Time (sec) Average Time Average Time2 d (m) 2d (m) Acceleration = 2d/t2 3 Washers 0.0143 0.14N Trial 1: 1.76 1.84 s 0.34 m/s2 0.6m 1.2m 0.35 m/s2 Trial 2: 1.86 Trial 3: 1.90 4 Washers 0.0191 0.19N Trial 1: 1.50 1.1 s 1.21 s2 0.6m 1.2m 0.99 m/s2 Trial 2: 1.50 Trial 3: 1.45 5 Washers 0.025 0.25N Trial 1: 1.23 1.23 s 1.51 s2 0.6m 1.2m...

the mass of block A is 80 kg, the mass of block b is 20 kg,...

the mass of block A is 80 kg, the mass of block b is 20 kg, and A is connected to B with the cable and pulley system shown. the pulleys rotate freely, and the cable and pulleys have negligible mass. the coefficient of static fricion between A and the horizontal surface is Ms=0.4, and the coefficient of kinetic friction is Mk=0.3. a) initially, block A is being held stationary and the system is at rest in static equilibrium ....

A block of mass 2 kg and a block of mass 3 kg are sliding on...

A block of mass 2 kg and a block of mass 3 kg are sliding on a frictionless surface. They collide and stick together. Before the collision the first block was travelling at 5 m/s in the positive x direction. After the collision the two blocks are travelling at 6 m/s in the negative x direction. What was the x component of the velocity of the second block before the collision?

A 0.112-kg block is suspended from a spring. When a small pebble of mass 31 g...

A 0.112-kg block is suspended from a spring. When a small pebble of mass 31 g is placed on the block, the spring stretches an additional 5.5 cm. With the pebble on the block, the block oscillates with an amplitude of 11 cm. Find the maximum amplitude of oscillation at which the pebble will remain in contact with the block.

A bullet of mass m=20 gr is fired into a block of mass M=5 kg initially...

A bullet of mass m=20 gr is fired into a block of mass M=5 kg initially at rest at the edge of a frictionless table of height h=0.90 m. The bullet remains in the block and the block lands a distance d=0.68 m from the bottom of the table. Picture1 a)Determine the initial velocity of the bullet. vi= m/s b) Determine the loss of kinetic Energy during the collision. ΔK = J.

A bullet of mass m=11 gr is fired into a block of mass M=1 kg initially...

A bullet of mass m=11 gr is fired into a block of mass M=1 kg initially at rest at the edge of a frictionless table of height h=1.10 m. The bullet remains in the block and the block lands a distance d=0.67 m from the bottom of the table. a)Determine the initial velocity of the bullet. b) Determine the loss of kinetic Energy during the collision.

A bullet of mass m=12 gr is fired into a block of mass M=1 kg initially...

A bullet of mass m=12 gr is fired into a block of mass M=1 kg initially at rest at the edge of a frictionless table of height h=1.00 m. The bullet remains in the block and the block lands a distance d=0.60 m from the bottom of the table. a)Determine the initial velocity of the bullet. vi= m/s b) Determine the loss of kinetic energy during the collision. ΔK = J

A bullet of mass m=14 gr is fired into a block of mass M=1 kg initially...

A bullet of mass m=14 gr is fired into a block of mass M=1 kg initially at rest at the edge of a frictionless table of height h=1.10 m. The bullet remains in the block and the block lands a distance d=0.65 m from the bottom of the table. Determine the initial velocity of the bullet. Determine the loss of kinetic Energy during the collision

A mass m = 1 kg is suspended from a spring that is stretched 1 cm...

A mass m = 1 kg is suspended from a spring that is stretched 1 cm under the influence of the weight of this mass. Now a periodic force is applied external of F (t) = 200 cos (vt) on the mass, which was initially in static balance. Disregarding all friction, get a relationship for position of the mass as a function of time, x (t). Also determine the value of ω which will cause resonance to occur