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melomori [17]
3 years ago
13

2) If the initial velocity of an object is equal to a final velocity, what is the acceleration of the object?

Physics
1 answer:
Arlecino [84]3 years ago
8 0

Answer:

The acceleration is 0.

Explanation:

The formula for acceleration is:

a = (v-u)/t

If v and u are equal, thus it would be 0 when subtracted, and anything divided by 0 is 0.

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A rolling ball has 8 joules of kinetic energy and is rolling 4m/s. Find it’s mass
Maru [420]

Answer:

m = 1

Explanation:

K.E = 8J

v = 4m/s

m = ?

Now,

K.E = 1÷2mv^2

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8 = 1÷2 × m × 16

8 = m × 8

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m = 1

<h3><em><u>VERIFICATION</u></em><em><u>:</u></em></h3>

K.E. = 1÷2mv^2

K.E = 1÷2 × 1 × 4^2

K.E. = 8J

<u>-TheUnknownScientist</u>

4 0
3 years ago
A new car manufacturer advertises that their car can go from zero to sixty mph in 8 [s]. This is a description of
PilotLPTM [1.2K]

Answer:

Acceleration

Explanation:

The fact that new can go from zero to 60mph in 8 secs is a description of its pick-up or in physics,  it's called acceleration.

Here initial velocity u= 0

final velocity v = 60 mph = 1m/minute.

or v =1609.344/60 = 26.82m/s

and time taken to do so is 8 sec

Acceleration a = (v-u)/t

a = (26.82-0)/8 = 3.35 m/s^2

Therefore, acceleration of the car a = 3.35 m/s^2.

6 0
3 years ago
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