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Anna11 [10]
3 years ago
9

Explain why a moving object cannot come to a stop instantly in zero seconds

Physics
2 answers:
sineoko [7]3 years ago
7 0
Well because it has momentum and it needs to be slowed down.
Harman [31]3 years ago
5 0
<span>The scientific term is <span>Inertia.
</span>
</span><span>"An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force."
</span>
There isn't an unbalanced force that can stop something instantly.
The object must be decelerated, due to the momentum a moving object is carrying with it.
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8. A 12kg bowling ball has a velocity of 8 m/s, and is brought to
Natali5045456 [20]

Answer:

The change in momentum experienced by the bowling ball is 96 kgm/s.

Explanation:

Given;

mass of the bowling ball, m = 12 kg

velocity of the bowling ball, v = 8 m/s

time  of motion, t = 10 s

The change in momentum experienced by the bowling ball is equal to the impulse experienced by the bowling ball.

ΔP = J = F x t

J = ft =\frac{mv}{t} \times t = mv\\\\J = 12 \times 8\\\\J = 96 \ kg.m/s

Therefore, the change in momentum experienced by the bowling ball is 96 kgm/s.

8 0
3 years ago
9.00 V is applied to a wire with a resistance of 52.0 ohm. At what distance from the wire is the magnetic field 2.22x 10^-8 T?
Romashka-Z-Leto [24]

Answer:

r = 1.56 m

Explanation:

B = μ₀I/2πr

r = μ₀I/2πB

I = 9.00 / 52.0 = 0.173 A

μ₀ = 4πe-7 T•m/A

r = 4πe-7(0.173)/2π(2.22e-8)

r = 2e-7(0.173)/(2.22e-8)

r = 1.5592... ≈ 1.56 m

6 0
3 years ago
A world class sprinter is travelling with speed 12.0 m/s at the end of a 100 meter race. Suppose he decelerates at the rate of 2
Solnce55 [7]

Answer:

after 6 second it will stop

he travel 36 m to stop

Explanation:

given data

speed = 12 m/s

distance = 100 m

decelerates rate = 2.00 m/s²

so acceleration a = - 2.00 m/s²

to find out

how long does it take to stop and how far does he travel

solution

we will apply here first equation of motion that is

v = u + at   ......1

here u is speed 12 and v is 0 because we stop finally

put here all value in equation 1

0 = 12 + (-2) t

t = 6 s

so after 6 second it will stop

and

for distance we apply equation of motion

v²-u² = 2×a×s  ..........2

here v is 0 u is 12 and a is -2 and find distance s

put all value in equation 2

0-12² = 2×(-2)×s

s = 36 m

so  he travel 36 m to stop

3 0
2 years ago
PLEASE HELP!! WILL GIVE POINTS
AURORKA [14]

Answer:

49 kg is the mass of the couch.

Explanation:

GPE = mgh

9800 = m * 10 * 20

9800 = 200m

m = (9800/20) = 49 m

Thenks and mark me brainliest :))

3 0
3 years ago
which of these types of radiation do you suppose we should fear the most if administered internally? •gamma rays •neutrons •alph
4vir4ik [10]
Alpha particles, because they are the heaviest ones (helium nuclei) and will travel around the body.
4 0
3 years ago
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