A Force of F = 90 N Is Exerted on Mass

question 13

Multiple Choice

A force of F = 90 N is exerted on mass m₁ as shown.Both m₁ and m₂ accelerate to the right at 3 m/s along the frictionless surface.The force F makes an angle of 25 degrees to the horizontal.If m₂ = 10 kg,calculate the mass m₁.

• A)2.7 kg
• B)17 kg
• C)27 kg
• D)1.8 kg
• E)24 kg

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Definitions:

Protons

Subatomic particles found in the nucleus of an atom, carrying a positive electrical charge.

Isotope

Isotopes are variants of a particular chemical element which differ in neutron number, and consequently in nucleon number, but have the same number of protons in their atomic nuclei.

Neutrons

Subatomic particles with no electrical charge, found in the nucleus of an atom, and responsible for much of the mass of atoms.