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3 years ago

6

Can an object be accelerated while traveling at constant velocity? Why or why not?

1 answer:

AysviL [449]3 years ago

3 0

Answer:

An object's acceleration is the rate its velocity (speed and direction) changes. Therefore, an object can accelerate even if its speed is constant - if its direction changes. If an object's velocity is constant, however, its acceleration will be zero.

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What is a force?

Fudgin [204]

Answer:

2. A push or pull

Explanation:

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3 years ago

What is the cost of operating a 100 W light bulb for "4 hrs per day" for 30 days, if the cost of electricity is 6 cents kW•h

Sidana [21]

Answer:

the cost of operating the light bulb is 72 cents.

Explanation:

Given;

cost of electricity, C = 6 cents / kW.h

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total time = 4 hours x 30 = 120 hours

Power consumed by the light bulb is calculated as;

P = 100 x 120 = 12000 w.h = 12 kW.h

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3 years ago

A force of 5 N accelerates an object. The object’s mass is 50 g. What is the acceleration of the object? (Formula: F=ma)

natima [27]

Explanation:

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4 years ago

A bullet with momentum of 2.8 kg·m/s [E] is traveling at a speed of 187 m/s. The mass of the bullet is: a) 67 g b) 15 g c) 0.067

Vesna [10]

Answer:

The mass of the bullet is 15 g.

(b) is correct option.

Explanation:

Given that,

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$m = \dfrac{P}{v}$

Where, P = momentum

v = speed

Put the value into the formula

$m = \dfrac{2.8}{187}$

$m = 0.015\ kg$

$m = 15\ g$

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3 years ago

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