Physics Homework Problems and iClicker Questions
Solve physics homework problems and iClicker questions related to forces, friction, and acceleration. Explore concepts with Dr. Harold A. Geller in the PHYS.160-3H2 course at Planetary Hall.
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Presentation Transcript
PHYS 160-3H2 0830-0920 Thursdays Planetary Hall Room 220 Week 5 with Dr. Harold A. Geller Office: Planetary Hall Room 233
First, dont forget the webpage First, don t forget the webpage for this recitation for this recitation http://physics.gmu.edu/~hgeller/PHYS160-3H2spring2024/
Physics Homework Problem Physics Homework Problem Presentation Presentation
iClicker Question Two forces of 5 newtons and 10 newtons act on a 10 kg body at 180 degrees of separation. The magnitude of the body s acceleration will be A 50 m/s2 B 2.0 m/s2 C 1.5 m/s2 D 0.5 m/s2
iClicker Question Two forces of 5 newtons and 10 newtons act on a 10 kg body at 180 degrees of separation. The magnitude of the body s acceleration will be A 50 m/s2 B 2.0 m/s2 C 1.5 m/s2 D 0.5 m/s2
iClicker Question If an object is moving north, the direction of the frictional force is A north B south C east D west
iClicker Question If an object is moving north, the direction of the frictional force is A north B south C east D west
iClicker Question In order to keep an object weighing 20 newtons moving at constant speed along a horizontal surface, a force of 10 newtons is required. The force of friction between the surface and the object is A 0 N B 10 N C 20 N D 30 N
iClicker Question In order to keep an object weighing 20 newtons moving at constant speed along a horizontal surface, a force of 10 newtons is required. The force of friction between the surface and the object is A 0 N B 10 N C 20 N D 30 N
iClicker Question A horizontal force of 15 newtons pulls a 5 kg block along a horizontal surface. If the force produces an acceleration of 2 meters per second per second, the frictional force acting on the block is A 1 N B 2 N C 5 N D 15 N
iClicker Question A horizontal force of 15 newtons pulls a 5 kg block along a horizontal surface. If the force produces an acceleration of 2 meters per second per second, the frictional force acting on the block is A 1 N B 2 N C 5 N D 15 N
iClicker Question A 2 kg mass moving along a horizontal surface at 10 meters per second is acted upon by a 5 newton force of friction. The time required to bring the mass to rest is A 10 s B 2 s C 5 s D 4 s
iClicker Question A 2 kg mass moving along a horizontal surface at 10 meters per second is acted upon by a 5 newton force of friction. The time required to bring the mass to rest is A 10 s B 2 s C 5 s D 4 s
iClicker Question A force of 40 newtons applied horizontally is required to push a 20 kg box at constant velocity across the floor. The coefficient of friction between the box and the floor is A 0.2 B 2 C 0.5 D 5
iClicker Question A force of 40 newtons applied horizontally is required to push a 20 kg box at constant velocity across the floor. The coefficient of friction between the box and the floor is A 0.2 B 2 C 0.5 D 5
iClicker Question A 100 newton box is moving on a horizontal surface. A force of 10 newtons applied parallel to the surface is required to keep the box moving at constant velocity. What is the maximum coefficient of kinetic friction between the box and the surface? A 0.1 B 10 C 0.5 D 1000
iClicker Question A 100 newton box is moving on a horizontal surface. A force of 10 newtons applied parallel to the surface is required to keep the box moving at constant velocity. What is the maximum coefficient of kinetic friction between the box and the surface? A 0.1 B 10 C 0.5 D 1000
Formulas Available for First Exam (expected)
