3 years ago

If there is an unbalanced force acting on an object, the object will?

Physics

1 answer:

Nonamiya [84]3 years ago

4 0

Answer:

Explanation:

because newton's second law states that if a resultant force acts on an object then, it will accelerate in the direction of the resultant force

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What is a volt as applied in physics

Alexus [3.1K]

Answer:

The answer is below

Explanation:

Volt in physics is a term that is used to describe the unit of both electrical potential difference and electromotive force. In other words, it is a unit of measuring the voltage between two points. It is represented as "V".

The formula for Voltage is V=IR

Where V= Voltage, I = Current and R = Resistance.

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3 years ago

The force of gravity down on the boy= 300N

Leviafan [203]

The net force on the boy is zero.

Based on this analysis, I would expect the boy to <u>not accelerate</u>.

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The block brake consists of a pin-connected lever and friction block at B. The coefficient of static friction between the wheel

erastovalidia [21]

Answer:

Explanation:

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3 years ago

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If the diameter of each of a car's wheels is 0.4 meters, approximately, what was the average speed of the car for its three-hour

Reptile [31]

Answer:

42 km/h was the average speed of the car for its three-hour trip.

Explanation:

Diameter of the car wheel = d = 0.4 m

Radius of the car wheel = r = 0.5 d = 0.5 × 0.4 m =0.2 m

Distance covered in 1 complete revolution = $2\pi r$

Distance covered in 100,000 complete revolution,D = $2\pi r\times 100,000$

$D=2\times 3.14\times 0.2 m\times 100,000=125,663.71 m$

1 m = 0.001 km

125,663.71 m = 125,663.71 × 0.001 km = 125.66371 km

Time taken to complete 100,000 revolution by a wheel = t = 3 hours

Speed of car : S

$S=\frac{125.66371 km}{3hours}=41.89 km/h\approx 42 km/h$

42 km/h was the average speed of the car for its three-hour trip.

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3 years ago

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A coin is dropped from a height of 421 m. calculate the velocity of the coin after 3 s

Keith_Richards [23]

Answer:

29.4 m.s

Explanation:

Vf = vo + at v o = original velocity = 0 in this case

Vf = at

= 9.81 m/s^2 * 3 = 29.4 m/s

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1 year ago