3. A woman pushes an oak chest across an oak floor at a constant speed of 0.450 m/s. The chest has a mass of 40 kg, and the coefficient of kinetic friction is 0.620. What is the force exerted by the woman? a. 11.1N b. 20.6N c. 243N d. 392N

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3. A woman pushes an oak chest across an oak floor at a constant speed of 0.450 m/s. The chest has
a mass of 40 kg, and the coefficient of kinetic friction is 0.620. What is the force exerted by the
woman?
a. 11.1N
b. 20.6N
4. When an object is at equilibrium, which is always true?
a. The object is not moving.
b. Th object is accelerating at constant rate.
c. 243N
5. Which is the term for a force that puts an object in equilibrium :-)
a. Normal Force
b. Static Friction Force
c. Resultant Force
b. 392N
c. The net force on the object is zero.
d. The object is oscillating.
d. 392N
6. The coefficient of static friction between a 40 kg table and the ground below that table is 0.43,
and the coefficient of the kinetic friction is 0.35. How much horizontal force is needed to move
the table? (
a. 169N
C. 137N
d. Equilibrant
d. 152N
7. On a sunny day, you and your friend decide to go for a hike. You walk 4.5 km East then 6.8 km
67⁰ Northwest. What is the magnitude of your displacement
a. 6.5 km
b. 11.3 km
c. 2.3 km
d. 42.6 km
Transcribed Image Text:3. A woman pushes an oak chest across an oak floor at a constant speed of 0.450 m/s. The chest has a mass of 40 kg, and the coefficient of kinetic friction is 0.620. What is the force exerted by the woman? a. 11.1N b. 20.6N 4. When an object is at equilibrium, which is always true? a. The object is not moving. b. Th object is accelerating at constant rate. c. 243N 5. Which is the term for a force that puts an object in equilibrium :-) a. Normal Force b. Static Friction Force c. Resultant Force b. 392N c. The net force on the object is zero. d. The object is oscillating. d. 392N 6. The coefficient of static friction between a 40 kg table and the ground below that table is 0.43, and the coefficient of the kinetic friction is 0.35. How much horizontal force is needed to move the table? ( a. 169N C. 137N d. Equilibrant d. 152N 7. On a sunny day, you and your friend decide to go for a hike. You walk 4.5 km East then 6.8 km 67⁰ Northwest. What is the magnitude of your displacement a. 6.5 km b. 11.3 km c. 2.3 km d. 42.6 km
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