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Questions and Answers
What are the coordinates of the center of mass of the system described in the text?
What are the coordinates of the center of mass of the system described in the text?
- 0.9 cm right and 2.0 cm above 1 kg mass
- 1.5 cm right and 1.2 cm above 1 kg mass (correct)
- 0.6 cm right and 2.0 cm above 1 kg mass
- 2.0 cm right and 0.9 cm above 1 kg mass
What is the equation to determine the radius R of the uniform sphere, given a spherical cavity is cut out and the center of mass of the remaining part is on the surface of the cavity?
What is the equation to determine the radius R of the uniform sphere, given a spherical cavity is cut out and the center of mass of the remaining part is on the surface of the cavity?
- $(R^2 - R - 1)(2 - R) = 1$
- $(R^2 + R + 1)(2 - R) = 1$ (correct)
- $(R^2 + R - 1)(2 - R) = 1$
- $(R^2 - R + 1)(2 - R) = 1$
When two particles, one dropped from a height h and another thrown vertically upwards from the ground with a speed of $2gh$, collide completely inelastically, what is the time taken for their combined mass to reach the ground, in units of h?
When two particles, one dropped from a height h and another thrown vertically upwards from the ground with a speed of $2gh$, collide completely inelastically, what is the time taken for their combined mass to reach the ground, in units of h?
- $\frac{5}{4}h$ (correct)
- $\frac{3}{4}h$
- $g$
- $\frac{3}{2}h$
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