An object in free-fall accelerates downward at 9.8m/s^2 .However, when the object is confined to slide...
An object in free-fall accelerates downward at 9.8m/s^2 .However, when the object is confined to slide (or roll) frictionlessly down an inclined plane, this acceleration is a function of the angle that the inclined plane makes with the horizontal. Use this result to find the time it takes something to descend a vertical distance along a frictionless plane inclined at an angle above the horizontal
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An object in free-fall accelerates downward at 9.8m/s^2
.However, when the object is confined to slide...
Questions 7-9 A cylinder of mass M is free to slide on a frictionless horizontal shaft...
Questions 7-9 A cylinder of mass M is free to slide on a frictionless horizontal shaft passing through its axcis. A ball of mass m is attached to the cylinder by a massiess string of length &. Initially, both the cylinder and the ball are at rest, with the d center of the cylinder at a perpendicular distance zo from the v-axis, and the ball displaced by an angle θ-π/2 to the right relative to the vertical. Use the coordinate...
Questions 7-9 A cylinder of mass M is free to slide on a frictionless horizontal shaft...
Questions 7-9 A cylinder of mass M is free to slide on a frictionless horizontal shaft passing through its axis. A ball of mass m is attached to the cylinder by a massiess of length (. Initially, both the cylinder and the ball are at rest, with the center of the cylinder at a perpendicular distance zo from the v-axis, and the ball displaced by an angle θ-π/2 to the right relative to the vertical. Use the coordinate system indicated...
a) Draw fully labelled free body and extended free body diagrams for the object. b) Explain what causes the object t...
a) Draw fully labelled free body and extended free body diagrams
for the object.
b) Explain what causes the object to roll instead of
slide.
2. Estimate how far the Earth moves when you jump up
to a height of 10 cm. Hint: The inertia of the earth is about 10^25
kg and its radius is about 10^5 km.
3.
5. A solid cylindrical object of rotational inertia, I, and radius, R, rolls down a angle e with the horizontal...
A conducting rod of mass m and negligible resistance is free to slide without friction along...
A conducting rod of mass m and negligible resistance is free to slide without friction along two parallel rails of negligible resistance separated by a distance I and connected by a resistor R. The rails are attached to a long inclined plane that makes an angle with the horizontal. There is a magnetic field B as shown. (a) Show that there is a retarding force on the bar and find an expression for this force. (b) Find an expression for...
Questions 7-9 A cylinder of mass M is free to slide on a frictionless horizontal shaft...
Questions 7-9 A cylinder of mass M is free to slide on a frictionless horizontal shaft passing through its axis. A ball of mass m is attached to the cylinder by a massiess string of length . Initially, both the cylinder and the ball are at rest, with the d center of the cylinder at a perpendicular distance zo from the y-axis, and the ball displaced by an angle 8 /2 to the right relative to the vertical. Use the...
rack of mass 1500 kg moving at 30 m/s is braked suddenly wit 1000-V. How far...
rack of mass 1500 kg moving at 30 m/s is braked suddenly wit 1000-V. How far does the car travel before stopping? th a constant braking force of 10. A baseball batter hits an incoming 45 m/s fastball. The ball leaves the bat at 55 m/s after a ball-on-bat contact time of 0.025 s. What is the force exerted on a 0.15-kg baseball? (choose + direction) 11. A trapeze artist, with swing, weighs 800 N; he is momentarily held horizontal...
Part 1) A small block travels up a frictionless incline that is at an angle of...
Part 1) A small block travels up a frictionless incline that is at an angle of 30.0°above the horizontal. The block has speed 4.26 m/s at the bottom of the incline. Assume g = 9.80 m/s2. How far up the incline (measured parallel to the surface of the incline) does the block travel before it starts to slide back down? Part 2) Complete the following exercises. (Assume g = 9.80 m/s2.) (a) A small block is released from rest at...
3. A very thin circular hoop of mass m and radius r is made to roll,...
3. A very thin circular hoop of mass m and radius r is made to roll, without slipping, down a ramp with an angle of inclination (with respect to the horizontal), as shown in the figure below. See Figure 3. Note: The moment of inertia of the thin circular hoop is given by: I houp = mra Consider a system consisting of a ladder with a painter climbing said ladder. The ladder has a length 1 = 5,00 meters and...
Questions 7-9 A cylinder of mass M is free to slide on a frictionless horizontal shaft passing through its axcis. A ball of mass m is attached to the cylinder by a massiess string of length &. Initially, both the cylinder and the ball are at rest, with the d center of the cylinder at a perpendicular distance zo from the v-axis, and the ball displaced by an angle θ-π/2 to the right relative to the vertical. Use the coordinate...
Questions 7-9 A cylinder of mass M is free to slide on a frictionless horizontal shaft passing through its axis. A ball of mass m is attached to the cylinder by a massiess of length (. Initially, both the cylinder and the ball are at rest, with the center of the cylinder at a perpendicular distance zo from the v-axis, and the ball displaced by an angle θ-π/2 to the right relative to the vertical. Use the coordinate system indicated...
a) Draw fully labelled free body and extended free body diagrams
for the object.
b) Explain what causes the object to roll instead of
slide.
2. Estimate how far the Earth moves when you jump up
to a height of 10 cm. Hint: The inertia of the earth is about 10^25
kg and its radius is about 10^5 km.
3.
5. A solid cylindrical object of rotational inertia, I, and radius, R, rolls down a angle e with the horizontal...
A conducting rod of mass m and negligible resistance is free to slide without friction along two parallel rails of negligible resistance separated by a distance I and connected by a resistor R. The rails are attached to a long inclined plane that makes an angle with the horizontal. There is a magnetic field B as shown. (a) Show that there is a retarding force on the bar and find an expression for this force. (b) Find an expression for...
Questions 7-9 A cylinder of mass M is free to slide on a frictionless horizontal shaft passing through its axis. A ball of mass m is attached to the cylinder by a massiess string of length . Initially, both the cylinder and the ball are at rest, with the d center of the cylinder at a perpendicular distance zo from the y-axis, and the ball displaced by an angle 8 /2 to the right relative to the vertical. Use the...
rack of mass 1500 kg moving at 30 m/s is braked suddenly wit 1000-V. How far does the car travel before stopping? th a constant braking force of 10. A baseball batter hits an incoming 45 m/s fastball. The ball leaves the bat at 55 m/s after a ball-on-bat contact time of 0.025 s. What is the force exerted on a 0.15-kg baseball? (choose + direction) 11. A trapeze artist, with swing, weighs 800 N; he is momentarily held horizontal...
3. A very thin circular hoop of mass m and radius r is made to roll, without slipping, down a ramp with an angle of inclination (with respect to the horizontal), as shown in the figure below. See Figure 3. Note: The moment of inertia of the thin circular hoop is given by: I houp = mra Consider a system consisting of a ladder with a painter climbing said ladder. The ladder has a length 1 = 5,00 meters and...
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