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QUESTION 2 The crate is being lifted up the inclined plane using the motor M and...
D Question 2 2 pts A donkey pulls a crate up a rough, inclined plane at...
D Question 2 2 pts A donkey pulls a crate up a rough, inclined plane at constant speed. Which one of the following statements concerning this situation is true? The gravitational potential energy of the crate is increasing. O The donkey does "negative" work in pulling the crate up the incline. The work done on the crate by the normal force of the plane is not zero joules. The work done on the object by gravity is zero joules. Two...
i need help solving all 4 of these 6. Consider a crate that is being pulled...
i need help solving all 4 of these
6. Consider a crate that is being pulled up a frictionless inclined plane at a constant speed, as shown in the figure. The work done by the tension in the cable on the crate is a. positive b. zero. c. negative. d. Need more information. Frict 7. Consider a crate that is being pulled up a frictionless inclined plane at a constant speed, as shown in the figure. The work done by...
The crate C is being lifted by moving the roller at A downward with a constant...
The crate C is being lifted by moving the roller at A downward with a constant speed of VA = 2 m/s along the guide. When the roller is at B, the crate rests on the ground. Neglect the size of the pulley in the calculation. Hint: Relate the coordinates uc and A using the problem geometry, then take the first and second time derivatives. (Figure 1) Part A Determine the magnitude of the velocity of the crate at the...
Q1 (b) A truck A pulls a crate B up a slope that is inclined at...
Q1 (b) A truck A pulls a crate B up a slope that is inclined at an angle of 150 to the horizontal, as shown in Figure Q1(b). The rope passes over a pulley of negligible size at C. At the instant shown, r 30 m, 0-45o and the truck has a speed of vA 20 km/h and an acceleration ax-0.2 m/s i) Express the velocity components of the crate B along the rope (4 marks) BC and transverse to...
Question A student is investigating the acceleration of a trolley moving up an inclined plane as...
Question A student is investigating the acceleration of a trolley moving up an inclined plane as shown in Figure 1 below inclined plane trolley bench Figure 1 The student is investigating the relationship between the acceleration a of the trolley and the angle 0 of the inclined plane when a force F is applied to the trolley. It is suggested that the relationship IS ma F (mg sin 6 + k) where g is the acceleration of free fall, m...
001 (part 1 of 2) 10.0 points A 500-N crate needs to be lifted 1 meter...
001 (part 1 of 2) 10.0 points A 500-N crate needs to be lifted 1 meter ver- tically in order to get it into the back of a pickup truck. What gives the crate a greater potential energy? 1. Unable to determine 2. Either 3. slide it up a frictionless inclined plane 4. lift it straight up into the truck 002 (part 2 of 2) 10.0 points What is the advantage of using the inclined plane? 1. more power 2....
Question 26 1 pts A 40.0 N crate is pulled up a 5.0 m inclined plane....
Question 26 1 pts A 40.0 N crate is pulled up a 5.0 m inclined plane. The angle of inclination of the plane to horizontal is 37º. If there is a constant force of friction of 10.0 N between the crate and the surface, what is the net gain in potential energy by the crate? O 120 0-120 210 O-210 Question 27 1 pts A spring is hung from the ceiling. A 2.0 kg mass suspended hung from the spring...
A 20 kg crate is allowed to slide down a 60-m long smooth inclined plane which...
A 20 kg crate is allowed to slide down a 60-m long smooth inclined plane which is 30° with the horizontal. At the bottom of the inclined plane, the crate is allowed to slide horizontally with the ground where the coefficient of friction between the crate and the ground is 0.15. After 1 m, the crate would meet a coil with a spring constant of 1000 N/m. (Assume that the friction no longer acts as the crate hits the spring).Calculate...
please explain, thanks An elevator is being lifted at a constant Motor speed by a steel...
please explain, thanks
An elevator is being lifted at a constant Motor speed by a steel cable attached to an electric motor. Which statement is correct? Cable A. The cable does positive work on the elevator, and the elevator does positive Elevator work on the cable. B. The cable does positive work on the elevator, and the elevator does negative work on the cable. C. The cable does negative work on the elevator, and the elevator does positive work on...
You push a crate of mass m up a ramp inclined at an angle A with...
You push a crate of mass m up a ramp inclined at an angle A with a force parallel to the ramp but of varying magnitude. The coefficient of friction between the crate and ramp is u, and the speed of the crate, which starts from rest, is v at the end of the ramp of length d. a) Use the work-energy theorem to find the work done by the non-constant force in moving the crate up the ramp. b)...
D Question 2 2 pts A donkey pulls a crate up a rough, inclined plane at constant speed. Which one of the following statements concerning this situation is true? The gravitational potential energy of the crate is increasing. O The donkey does "negative" work in pulling the crate up the incline. The work done on the crate by the normal force of the plane is not zero joules. The work done on the object by gravity is zero joules. Two...
i need help solving all 4 of these
6. Consider a crate that is being pulled up a frictionless inclined plane at a constant speed, as shown in the figure. The work done by the tension in the cable on the crate is a. positive b. zero. c. negative. d. Need more information. Frict 7. Consider a crate that is being pulled up a frictionless inclined plane at a constant speed, as shown in the figure. The work done by...
The crate C is being lifted by moving the roller at A downward with a constant speed of VA = 2 m/s along the guide. When the roller is at B, the crate rests on the ground. Neglect the size of the pulley in the calculation. Hint: Relate the coordinates uc and A using the problem geometry, then take the first and second time derivatives. (Figure 1) Part A Determine the magnitude of the velocity of the crate at the...
Q1 (b) A truck A pulls a crate B up a slope that is inclined at an angle of 150 to the horizontal, as shown in Figure Q1(b). The rope passes over a pulley of negligible size at C. At the instant shown, r 30 m, 0-45o and the truck has a speed of vA 20 km/h and an acceleration ax-0.2 m/s i) Express the velocity components of the crate B along the rope (4 marks) BC and transverse to...
Question A student is investigating the acceleration of a trolley moving up an inclined plane as shown in Figure 1 below inclined plane trolley bench Figure 1 The student is investigating the relationship between the acceleration a of the trolley and the angle 0 of the inclined plane when a force F is applied to the trolley. It is suggested that the relationship IS ma F (mg sin 6 + k) where g is the acceleration of free fall, m...
001 (part 1 of 2) 10.0 points A 500-N crate needs to be lifted 1 meter ver- tically in order to get it into the back of a pickup truck. What gives the crate a greater potential energy? 1. Unable to determine 2. Either 3. slide it up a frictionless inclined plane 4. lift it straight up into the truck 002 (part 2 of 2) 10.0 points What is the advantage of using the inclined plane? 1. more power 2....
Question 26 1 pts A 40.0 N crate is pulled up a 5.0 m inclined plane. The angle of inclination of the plane to horizontal is 37º. If there is a constant force of friction of 10.0 N between the crate and the surface, what is the net gain in potential energy by the crate? O 120 0-120 210 O-210 Question 27 1 pts A spring is hung from the ceiling. A 2.0 kg mass suspended hung from the spring...
A 20 kg crate is allowed to slide down a 60-m long smooth inclined plane which is 30° with the horizontal. At the bottom of the inclined plane, the crate is allowed to slide horizontally with the ground where the coefficient of friction between the crate and the ground is 0.15. After 1 m, the crate would meet a coil with a spring constant of 1000 N/m. (Assume that the friction no longer acts as the crate hits the spring).Calculate...
please explain, thanks
An elevator is being lifted at a constant Motor speed by a steel cable attached to an electric motor. Which statement is correct? Cable A. The cable does positive work on the elevator, and the elevator does positive Elevator work on the cable. B. The cable does positive work on the elevator, and the elevator does negative work on the cable. C. The cable does negative work on the elevator, and the elevator does positive work on...
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