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A 3-kg toy car sits at the highest point of a 13-meter-high hill. The car begins...
estion 6 of 9 > A 3 kg toy car sits at the highest point of...
estion 6 of 9 > A 3 kg toy car sits at the highest point of a 13 m high hill. The car is gently pushed forward until it begins to roll down the slope. Assuming the car coasts freely, without any friction or air resistance, how much kinetic energy (KE) and potential energy (PE) will it have at each of the indicated points? Complete the diagram by placing the correct label in each bin. Use 8 = 10 m/s...
The figure below shows a 4800 kg cable car descending a high hill. A counterweight of...
The figure below shows a 4800 kg cable car descending a high hill. A counterweight of mass 4400 kg on the other side of the hill aids the breaks in controlling the cable car's speed. The rolling friction of both the cable car and the counterweight are negligible. a. How much braking force does the cable car need to descend with an acceleration of 0.15 m/s? b. What is the tension in the cable connecting the two cars in part...
The 1800-kg car descends a hill of angle 0 3°. The drag force due to air...
The 1800-kg car descends a hill of angle 0 3°. The drag force due to air resistance is k 0.45 kg/m D kv2 for Use the sketch to complete a free-body diagram. From an initial velocity of 29 m/s (65 mph), the car coasts 1600 m along the slope. Determine the velocity at that point Hint: After finding the acceleration, choose a dr vs dvs to integrate the kinematics; the resulting integral simplifies with the substitution, u = denominator, which...
3. A car is negotiating a curve of radius 250 m. If the maximum speed the...
3. A car is negotiating a curve of radius 250 m. If the maximum speed the car can go without slipping is 47 m/s. Find coefficient of static friction between car's tires and the road. A) 0.6 B) 0.7 C) 0.8 D) 0.9 4. A car on a roller coaster has a speed of 12 m/s at an elevation of 20 m above the ground. It coasts down a slope, and then comes to rest after climbing a hill. Find...
A car in an amusement park roller coaster ride rolls without friction at the top of...
A car in an amusement park roller coaster ride rolls without friction at the top of a hill. The car begins at a height h from the top of a hill. A the bottom, the car then goes through a vertical loop where the car is upside down at the loop\'s top. If the radius of the loop is 20.0m, what is the minimum height h such that the car moves around the loop without falling off the track at...
B1 a Show that the resistance to motion of a ship through water is given by [13] CF f(R, Fr) where the three dimensionless groups (the Force Coefficient, Reynolds number and Froude number)are given b...
B1 a Show that the resistance to motion of a ship through water is given by [13] CF f(R, Fr) where the three dimensionless groups (the Force Coefficient, Reynolds number and Froude number)are given by LI /Lg pu'L were F is the resistance force, u is the speed of the ship, L is the length of the ship, ρ is the density of water, is the dynamic viscosity of water and g is the acceleration due to gravity b)For a...
Help 13.Two spheres of mass M and radius R are both released from rest at the...
Help
13.Two spheres of mass M and radius R are both released from rest at the top of a hill and allowed to roll to the bottom. One of the spheres is hollow however, while the other is solid. Which of the spheres reaches the bottom first? A) The hollow one B The solid one C) They reach the bottom at the same time D) It depends on the angle of inclination. E) It depends on the length of the...
help 13.Two spheres of mass M and radius R are both released from rest at the...
help
13.Two spheres of mass M and radius R are both released from rest at the top of a hill and allowed to roll to the bottom. One of the spheres is hollow however, while the other is solid. Which of the spheres reaches the bottom first? A) The hollow one B) The solid one C) They reach the bottom at the same time D) It depends on the angle of inclination. E) It depends on the length of the...
A car with a mass of 1200 kg is moving around a curve with a radius...
A car with a mass of 1200 kg is moving around a curve with a radius of m constant speed of 10 m/s Calculate the centripetal acceleration the the two decimal the final answer Determine the magnitude of the force required to produce this centripetal acceleration. Round to nearest whole number 2. A 0.23 kg ball moving in a circle at the end of a string has a centripetal acceleration of 10 m/s. Determine the magnitude of the centripetal force...
(non calculus based physics) Question 1 An Olympic weight lifter lifts an 1800 N set of...
(non calculus based physics) Question 1 An Olympic weight lifter lifts an 1800 N set of weights from the ground to a vertical distance of 2.20 m above his head. Assuming he moves the weights at constant speed, how much work does the weight lifter do? Question 2 A 4.5 kg trunk, initially at rest, takes 2.0 s to slide 2.8 m down a rough 25° slope. Calculate: the work performed by the force of gravity. the amount of mechanical...
estion 6 of 9 > A 3 kg toy car sits at the highest point of a 13 m high hill. The car is gently pushed forward until it begins to roll down the slope. Assuming the car coasts freely, without any friction or air resistance, how much kinetic energy (KE) and potential energy (PE) will it have at each of the indicated points? Complete the diagram by placing the correct label in each bin. Use 8 = 10 m/s...
The figure below shows a 4800 kg cable car descending a high hill. A counterweight of mass 4400 kg on the other side of the hill aids the breaks in controlling the cable car's speed. The rolling friction of both the cable car and the counterweight are negligible. a. How much braking force does the cable car need to descend with an acceleration of 0.15 m/s? b. What is the tension in the cable connecting the two cars in part...
The 1800-kg car descends a hill of angle 0 3°. The drag force due to air resistance is k 0.45 kg/m D kv2 for Use the sketch to complete a free-body diagram. From an initial velocity of 29 m/s (65 mph), the car coasts 1600 m along the slope. Determine the velocity at that point Hint: After finding the acceleration, choose a dr vs dvs to integrate the kinematics; the resulting integral simplifies with the substitution, u = denominator, which...
3. A car is negotiating a curve of radius 250 m. If the maximum speed the car can go without slipping is 47 m/s. Find coefficient of static friction between car's tires and the road. A) 0.6 B) 0.7 C) 0.8 D) 0.9 4. A car on a roller coaster has a speed of 12 m/s at an elevation of 20 m above the ground. It coasts down a slope, and then comes to rest after climbing a hill. Find...
B1 a Show that the resistance to motion of a ship through water is given by [13] CF f(R, Fr) where the three dimensionless groups (the Force Coefficient, Reynolds number and Froude number)are given by LI /Lg pu'L were F is the resistance force, u is the speed of the ship, L is the length of the ship, ρ is the density of water, is the dynamic viscosity of water and g is the acceleration due to gravity b)For a...
Help
13.Two spheres of mass M and radius R are both released from rest at the top of a hill and allowed to roll to the bottom. One of the spheres is hollow however, while the other is solid. Which of the spheres reaches the bottom first? A) The hollow one B The solid one C) They reach the bottom at the same time D) It depends on the angle of inclination. E) It depends on the length of the...
help
13.Two spheres of mass M and radius R are both released from rest at the top of a hill and allowed to roll to the bottom. One of the spheres is hollow however, while the other is solid. Which of the spheres reaches the bottom first? A) The hollow one B) The solid one C) They reach the bottom at the same time D) It depends on the angle of inclination. E) It depends on the length of the...
A car with a mass of 1200 kg is moving around a curve with a radius of m constant speed of 10 m/s Calculate the centripetal acceleration the the two decimal the final answer Determine the magnitude of the force required to produce this centripetal acceleration. Round to nearest whole number 2. A 0.23 kg ball moving in a circle at the end of a string has a centripetal acceleration of 10 m/s. Determine the magnitude of the centripetal force...
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