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2 years ago

An object moving with a speed of 35M/s and has a kinetic energy of 1500 J what is the mass of the object

Physics

1 answer:

Lelu [443]2 years ago

7 0

2.45 Kg

Explanation:

K.E = 0.5 mv^2

1500 = 0.5 × m × (35)^2

1500= m × 0.5 × 1225

1500 = m × 612.5

1500/612.5 = m

2.45 = m

m = 2.45kg

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Write the equivalent formulas for velocity, acceleration, and force using the relationships covered for UCM, Newton’s Laws, and

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Answer:

The newton’s second law is F=ma

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Explanation:

Given that,

The equivalent formulas for velocity, acceleration, and force using the relationships covered for UCM, Newton’s Laws, and Gravitation.

We know that,

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The velocity is equal to the rate of position of the object.

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Newton’s second Laws

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In mathematically,

$F=\dfrac{d(p)}{dt}$

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The force is equal to the product of mass of objects and divided by square of distance.

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2 years ago

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Complete Question

For each of the following scenarios, describe the force providing the centripetal force for the motion:

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c. a person sitting on a bench facing the center of a carousel

d. a rock swinging on a string

e. the Earth orbiting the Sun.

Answer:

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The force providing the centripetal force is the frictional force on the tires \

i.e $\mu mg = \frac{mv^2}{r}$

where $\mu$ is the coefficient of static friction

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Considering c

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2 years ago

Lasers are classified according to the eye-damage danger they pose. Class 2 lasers, including many laser pointers, produce visib

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Answer:

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If beam diameter = 2 mm = 2 x 10^-3 m

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