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Fofino [41]
3 years ago
12

Skater 1 has a mass of 45 kg and is at rest. Skater 2 has a mass of 50 kg and is moving slowly at a constant velocity of 3.2 m/s

[E]. Skater 3 has a mass of 75 kg and is moving quickly at a constant velocity of 9.6 m/s [E]. Which skater experiences the greater net force? Explain your reasoning
Physics
1 answer:
algol133 years ago
3 0

Answer:

None

Explanation:

Force, F is given by ma where m is the mass of an object and a is acceleration

Acceleration is the rate of change in velocity per unit time. Since skaters with mass of 75 kg and 50 kg are moving at a constant speed, there is no acceleration hence F=50*0=0 and F=75*0=0

For skater of 45 kg, he is at rest to mean the initial and final velocitu of the skater is zero hence no acceleration, the force will be 45*0=0

Therefore, none of the skaters will experience a greater net force.

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Ronch [10]

Correct matching:


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5. Inertia --> an object´s resistance to a change in motion

3. friction --> force of resistance acting between objects in contact and tending to dampen their motion

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6 0
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A child is sliding down a slide at the playgound. is mechanicalenergy conserved
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6 0
3 years ago
Convert 93.6 miles per hour. Convert this to kilometers per hour.
Readme [11.4K]

Answer:

150.6 km

Explanation:

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3 0
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Answer:

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