A crate is at rest on a horizontal floor, with nobody pushing. The friction force acting on the crate is
A) zero.
B) equal to the weight of the crate.
C) between zero and the weight of the crate.
D) none of the above
Answer: A
You might also like to view...
Heavy snow showers and low temperatures in Buffalo, New York are most likely caused by a
A) continental tropical air mass. B) continental polar air mass. C) maritime tropical air mass. D) maritime polar air mass.
You drive 6.00 km at 50.0 km/h and then another 6.00 km at 90.0 km/h. Your average speed over the 12.0 km drive will be
A) greater than 70.0 km/h. B) equal to 70.0 km/h. C) less than 70.0 km/h. D) exactly 38.0 km/h. E) cannot be determined from the information given, must also know directions traveled
A quantity of mercury occupies 400.0 cm3 at 0°C. What volume will it occupy when heated to 50°C? Mercury has a volume expansion coefficient of 180 × 10-6 K-1
A) 450 cm3 B) 409.7 cm3 C) 403.6 cm3 D) 401.8 cm3
Equilibrium: In the figure, what does the spring scale read? The pulleys are ideal and the strings and scale are also massless.
A. exactly 2.0 N. B. exactly 1.0 N C. 0.50 N D. 0.00 N E. more than 19.6 N