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3 years ago

The greater the mass is in an object, the higher resistance to a change in movement the object will have.

Physics

2 answers:

gavmur [86]3 years ago

7 0

The correct answer is True

Explanation:

According to Newton's first law about motion, objects or bodies show a resistance to change their state this includes static objects or those that move. In this way, an object will not change its movement or state except if forces act on it, this is commonly known as inertia. Additionally, inertia and mass (quantity of matter) are closely related as the greater the mass the higher resistance, this can be explained as greater external forces are necessary to change the state of the object if the mass is greater. Thus, it is true the greater the mass is in an object, the higher the resistance to a change in movement the object will have.

Bond [772]3 years ago

3 0

True. Since Inertia states this law, we are bound to believe greater mass = greater resistance in change of motion

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Explanation:

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½ m v₀² + ½ I ω₀² = mgh + ½ m v₁² + ½ I ω₁²

Since the ball is rolling without slipping, ω = v / r.

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⅚ v₀² = gh + ⅚ v₁²

v₀² = 1.2gh + v₁²

v₁ = √(v₀² − 1.2gh)

Given v₀ = 4.03 m/s, g = 9.80 m/s, h = 0.900 m:

v₁ = √((4.03)² − 1.2 (9.80) (0.900))

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At the top of the loop, the sum of the forces in the radial direction is:

∑F = ma

W + N = m v² / R

N = m v² / R - mg

N = m (v² / R - g)

Given v = 2.38 m/s, R = 0.450 m, and g = 9.80 m/s²:

N = m ((2.38)² / 0.450 - 9.80)

N = 2.77m

N ≥ 0, so the ball stays on the track.

Initial energy = final energy

Borrowing from part a):

v₂ = √(v₀² − 1.2gh)

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Without the rotational energy:

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