2 years ago

Start from 0 m/s and accelerate at 2m/s? Calculate the speed in m/s after acceleration for 5 seconds.

Physics

1 answer:

valentinak56 [21]2 years ago

4 0

Answer:

10m/s

Explanation:

2m/s x 5s=10m/s

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Amy is in-line skating. Her mass is 50 kg. She is rolling forward (north) on a flat section of road at 10 m/s. The rolling frict

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The right solution is "0.50 m/s²". A further explanation is provided below.

Explanation:

The given values are:

Mass,

m = 50 kg

Speed,

v = 10 m/s

Rolling friction acting backward (south),

f = 10 N

Air resistance acting backward (south),

$F_T$ = 15 N

The total force acting will be:

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⇒ $=-10-15$

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⇒ $=\frac{-25}{50}$

⇒ $=-0.50 \ m/s^2$

The horizontal acceleration will be "0.50 m/s²" because the (-)ve sign indicates it in south direction.

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