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Jobisdone [24]
3 years ago
13

A block of concrete has a mass of 48kg a crane lifts the block to a height of 12m above the ground calculate the gravitational p

otential energy stored by the block (gravitational field strength g=10N/kg)
Physics
1 answer:
Afina-wow [57]3 years ago
3 0

Answer:

5760 J

Explanation:

From the question given above, the following data were obtained:

Mass of block = 48 kg

Height (h) = 12 m

Gravitational field strength (g) = 10 N/Kg

Gravitational potential energy (PE) =?

The gravitational potential energy stored by the block can simply be obtained as follow:

PE = mgh

PE = 48 × 10 × 12

PE = 5760 J

Therefore, the gravitational potential energy stored by the block is 5760 J

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what would you expect to happen to the acceleration if all friction were removed from the ramp, making the net force even higher
Gnoma [55]

Answer:

Increase

Explanation:

The acceleration will increase more if all the friction were removed from ramp.

Acceleration is the rate of change of velocity with time.

Frictional force is a force that opposes motion of a body.

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5 0
3 years ago
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A bowling ball has a mass of 5 kg. What happens to its momentum when its speed increases from 1 m/s to 2 m/s?
faltersainse [42]

The linear momentum is given by mv. Here m is mass v is velocity of the body. Given mass and velocities as m=5,v_i=1,v_f=2

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The correct answer is (A)

8 0
3 years ago
A shot putter heaves a 7.26kg shot with final velocity of 7.50m/s what is kinetic energy?
ivanzaharov [21]

Answer: KE=.5mv^2

KE=.5(7.62)(7.5)^2

KE=.5(7.62)(56.25)

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Explanation:

8 0
2 years ago
Ryan swings a pail of water in a vertical circle 1.0 m in radius at a constant speed. If the water is NOT to spill on him:
nexus9112 [7]

Part 1

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g = \frac{v^2}{R}

v = \sqrt{Rg}

given that

R = 1 m

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Part b)

for minimum value of angular speed we will have

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3 years ago
what is the kinetic energy of a hammer that starts from rest and decreases its potential energy by 10k?
Tresset [83]

Answer:

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