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ioda
3 years ago
15

A scooter travelling at 10 m/s speed up to 20 m/s in 4 sec. Find the acceleration of scooter.

Physics
1 answer:
Aleksandr-060686 [28]3 years ago
3 0

Explanation:

The acceleration of the scooter is 2.5 m/s

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Crystallization is a separation technique used to produce rock candy from a sugar solution. true or false
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A 45-kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she is above the bar is 1.1 m/s. Neglect air resistan
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The altitude or height of the pole vaulter as she crosses the bar is 4.04 m.

<h3>What is the height of the pole vaulter?</h3>

The height of the pole vaulter is determined from the change in kinetic energy which is equal to the potential energy at that height.

  • Potential energy = Change in kinetic energy
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h = (v - u)²/2g

h = (10 - 1.1)²/2 * 9.8

h = 4.04 m.

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1 year ago
Difference between health education and physical health education​
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6 0
3 years ago
A 2.0 kg mass moving at 5.0 m/s suddenly collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, h
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Answer:

correct answer is (c) 15 J

Explanation:

given data

mass m1 = 2 kg

velocity V1 = 5 m/s

mass other  = 3 kg

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solution

we will apply here conservation of momentum:

m1V1 = m2V2  ..........................1

put here value and we get  velocity v2

(2.0) × (5.0) = (2.0 + 3.0) × V

solve it we get

10 = 5 × V 2

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so here kinetic energy will be

KE = ½ × m × v²

so

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∆KE = 0.5 × 2 × 25 - 0.5 × 5 × 4

 ∆KE = 25 - 10

∆KE  = 15 J

4 0
3 years ago
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