Question

007 10.0 points Two blocks are arranged at the ends of a massless string as shown in the figure. The system starts from rest. When the 3.96 kg mass has fallen through 0.372 m, its downward speed is 1.32 m/s. The acceleration of gravity is 9.8 m/s". a 5.37 kg ? 3.96 kg What is the frictional force between the 5.37 kg mass and the table? Answer in units of N. 008 10.0 points A block accelerates at 3.1 m/s" down a plane inclined at an angle 26.0". 3.1 m/s" m ?k 26" Find ?k between the block and the inclined plane. The acceleration due to gravity is 9.81 m/s". 009 10.0 points A car is moving at 20 m/s along a curve on a horizontal plane with radius of curvature 50 m. The acceleration of gravity is 9.8. What is the required minimum coefficient of static friction between the road and the car's tires to keep the car from skidding? 010 10.0 points Consider a conical pendulum, where a string with length ? is attached to a mass m. The angle between the string and the vertical is ?. The orbit is in the horizontal plane with radius r and tangential velocity v. g ? ? r v m What is the correct free body diagram showing only the forces acting on the mass? The acceleration due to gravity is 9.8 m/s". 1. ? 2. ? 3. ? 4. ?

          007 10.0 points
Two blocks are arranged at the ends of a massless string as shown in the figure. The system starts from rest. When the 3.96 kg mass has fallen through 0.372 m, its downward speed is 1.32 m/s. The acceleration of gravity is 9.8 m/s".
a
5.37 kg
?
3.96 kg
What is the frictional force between the 5.37 kg mass and the table? Answer in units of N.
008 10.0 points
A block accelerates at 3.1 m/s" down a plane inclined at an angle 26.0".
3.1 m/s"
m
?k
26"
Find ?k between the block and the inclined plane. The acceleration due to gravity is 9.81 m/s".
009 10.0 points
A car is moving at 20 m/s along a curve on a horizontal plane with radius of curvature 50 m.
The acceleration of gravity is 9.8.
What is the required minimum coefficient of static friction between the road and the car's tires to keep the car from skidding?
010 10.0 points
Consider a conical pendulum, where a string with length ? is attached to a mass m. The angle between the string and the vertical is ?. The orbit is in the horizontal plane with radius r and tangential velocity v.
g
?
?
r
v
m
What is the correct free body diagram showing only the forces acting on the mass? The acceleration due to gravity is 9.8 m/s".
1.
?
2.
?
3.
?
4.
?

007 10.0 points
Two blocks are arranged at the ends of a massless string as shown in the figure. The system starts from rest. When the 3.96 kg mass has fallen through 0.372 m, its downward speed is 1.32 m/s. The acceleration of gravity is 9.8 m/s".
a
5.37 kg
?
3.96 kg
What is the frictional force between the 5.37 kg mass and the table? Answer in units of N.
008 10.0 points
A block accelerates at 3.1 m/s" down a plane inclined at an angle 26.0".
3.1 m/s"
m
?k
26"
Find ?k between the block and the inclined plane. The acceleration due to gravity is 9.81 m/s".
009 10.0 points
A car is moving at 20 m/s along a curve on a horizontal plane with radius of curvature 50 m.
The acceleration of gravity is 9.8.
What is the required minimum coefficient of static friction between the road and the car's tires to keep the car from skidding?
010 10.0 points
Consider a conical pendulum, where a string with length ? is attached to a mass m. The angle between the string and the vertical is ?. The orbit is in the horizontal plane with radius r and tangential velocity v.
g
?
?
r
v
m
What is the correct free body diagram showing only the forces acting on the mass? The acceleration due to gravity is 9.8 m/s".
1.
?
2.
?
3.
?
4.
?

Added by Molly A.

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