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Questions and Answers
What is the equation for weight (W) in terms of mass (m) and gravitational constant (g)?
What is the equation for weight (W) in terms of mass (m) and gravitational constant (g)?
- $W = m - g$
- $W = m + g$
- $W = mg$ (correct)
- $W = m/g$
What is the value of the gravitational constant (g) commonly used in calculations?
What is the value of the gravitational constant (g) commonly used in calculations?
- 10 N/kg
- 6.67 x 10$^{-11}$ Nm$^2$/kg$^2$
- 9.8 m/s$^2$ (correct)
- 3 x 10$^8$ m/s
What is the direction of the ground reaction force in relation to the force of gravity or body weight?
What is the direction of the ground reaction force in relation to the force of gravity or body weight?
- Horizontal
- Perpendicular
- Upward (correct)
- Downward
Where is the point of application of the ground reaction force?
Where is the point of application of the ground reaction force?
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What is the resistance developed at the surface of contact when a force is required to make one surface slide over the other?
What is the resistance developed at the surface of contact when a force is required to make one surface slide over the other?
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