Question

1. A 2155 kg ball swings at the end of a 17.5 m cable on the arc of a vertical circle. At the lowest point of the swing, the ball is moving at 8.6 m/s. a. Draw the free body diagram for the ball at the lowest point. b. Determine the tension in the cable at the lowest point. 2. A ball has amass of 12 kg. It is attached to a string 1.2 m in length. The maximum tension in the string is 230N. If the ball is swinging in a horizontal circle, calculate a. the speed of the ball. b. the angle of the string relative to the horizontal just before the string breaks. 3. A car is making a circular turn of radius 50m on a flat road . The coefficient of friction between the tires and the road is 0.65. Calculate the maximum speed of the car. 4. A highway curve with radius 250m is to be banked so that a car traveling 25m/swill not skid sideways even in the absence of friction. a) Draw a free body diagram for the car b) At what angle should the curve be banked? 5. A 4.0 kg mass is attached to one end of a rope 2 m long. If the mass is swung in a vertical circle from the free end of the rope, what is the tension in the rope when the mass is at its highest point if it is moving with a speed of 5 m/s 6. The mass of the Earth is 5.97 x 10^24 kg and the mass of the moon is 10^22kg. the mean distance between the Earth and the moon is 3.8 x 10^8m. Calculate the force of gravitational attraction between the Earth and the Moon?

          1. A 2155 kg ball swings at the end of a 17.5 m cable on the
arc of a vertical circle. At the lowest point of the swing, the
ball is moving at 8.6 m/s.
a. Draw the free body diagram for the ball at the lowest point.
b. Determine the tension in the cable at the lowest point.

2. A ball has amass of 12 kg. It is attached to a string 1.2 m in
length. The maximum tension in the string is 230N. If the
ball is swinging in a horizontal circle, calculate
a. the speed of the ball.
b. the angle of the string relative to the horizontal just
before the string breaks.

3. A car is making a circular turn of radius 50m on a flat road
. The coefficient of friction between the tires and the road is
0.65. Calculate the maximum speed of the car.

4. A highway curve with radius 250m is to be banked so that a
car traveling 25m/swill not skid sideways even in the
absence of friction.
a) Draw a free body diagram for the car
b) At what angle should the curve be banked?

5. A 4.0 kg mass is attached to one end of a rope 2 m long. If
the mass is swung in a vertical circle from the free end of
the rope, what is the tension in the rope when the mass is at
its highest point if it is moving with a speed of 5 m/s

6. The mass of the Earth is 5.97 x 10^24 kg and the mass of the
moon is 10^22kg. the mean distance between the Earth and
the moon is 3.8 x 10^8m. Calculate the force of gravitational
attraction between the Earth and the Moon?

1. A 2155 kg ball swings at the end of a 17.5 m cable on the
arc of a vertical circle. At the lowest point of the swing, the
ball is moving at 8.6 m/s.
a. Draw the free body diagram for the ball at the lowest point.
b. Determine the tension in the cable at the lowest point.

2. A ball has amass of 12 kg. It is attached to a string 1.2 m in
length. The maximum tension in the string is 230N. If the
ball is swinging in a horizontal circle, calculate
a. the speed of the ball.
b. the angle of the string relative to the horizontal just
before the string breaks.

3. A car is making a circular turn of radius 50m on a flat road
. The coefficient of friction between the tires and the road is
0.65. Calculate the maximum speed of the car.

4. A highway curve with radius 250m is to be banked so that a
car traveling 25m/swill not skid sideways even in the
absence of friction.
a) Draw a free body diagram for the car
b) At what angle should the curve be banked?

5. A 4.0 kg mass is attached to one end of a rope 2 m long. If
the mass is swung in a vertical circle from the free end of
the rope, what is the tension in the rope when the mass is at
its highest point if it is moving with a speed of 5 m/s

6. The mass of the Earth is 5.97 x 10^24 kg and the mass of the
moon is 10^22kg. the mean distance between the Earth and
the moon is 3.8 x 10^8m. Calculate the force of gravitational
attraction between the Earth and the Moon?

Added by Sarah F.

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