M2 Quiz#6:25 (Mechanic-Kinetics.B)

The SI unit of velocity is?

• metre per second squared (m/s2).

• metre per second (m/s).

• metre (m).

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The force that acts on a body to cause it to rotate in a circular path is called?

• centripetal force.

• centrifugal force.

• inertia force.

Which of Newton’s Laws applies most directly to an aircraft accelerating down a runway?.

• The 3rd law.

• The 2nd law.

• The 1st law.

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The SI unit of acceleration is?

• metre per second squared (m/s2).

• metre per second (m/s).

• square metre (m2).

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Which of Newton's laws relates to the formula: Force = mass * acceleration?.

• 1st.

• 2nd.

• 3rd.

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F = ma is an equation that expresses.

• Newton’s 1st law.

• Newton’s 2nd law.

•  Newton’s 3rd law.

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Which of the following affects the velocity of an object?.

• Speed and direction.

• Speed and distance.

• Speed and mass.

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What force is required to produce an acceleration of 5 m/s2 on a mass of 2 kg?.

•  2.5 N.

• 10 N.

• 50 N.

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Newton’s laws of motion applies to?

• solid substances only.

• all substances irrespective of state.

• gases and liquids only.

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What is the rate of gravity?.

• 12.7 m/s2.

•  0.981 m/s2.

• 9.81 m/s2.