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12. In turning a corner, a car of mass 2 000 kg describes on a horizontal...
A car travels at constant speed around a corner. The cars speed is 35 m/s and...
A car travels at constant speed around a corner. The cars speed is 35 m/s and the radius of the circle is 0.25 km. The coefficient of static friction between the tires and the road is 0.7. What is the frictional force needed for the car to make the turn? What is the maximum force the static friction can produce? Does the car stay on the road? The car is in motion so why is the static friction important?
1. A car travels at constant speed around a horizontal circular corner of radius 5 m....
1. A car travels at constant speed around a horizontal circular corner of radius 5 m. n (a) Given that the car just starts to skid if its speed is 12 km/h, find the frictional force acting on the car. (b) Assuming the same frictional force is acting, calculate the car's smallest possible turning radius if the speed is 30 km/h. (c) Calculate the turning radius for the car travelling at 12 km/h in wet conditions where the frictional force...
QUESTION 24 A truck of mass 3000 kg moves around an unbanked corner of radius 81.2...
QUESTION 24 A truck of mass 3000 kg moves around an unbanked corner of radius 81.2 m. If the coefficient of static friction between the truck tires and the road is 0.800, what is the maximum speed that the truck can move without slipping, in units of m/s? QUESTION 25 Find the mass of an object, in units of kilograms, if a resultant force of 11.2 N will give it an acceleration of 2.00 m/s. QUESTION 26 What is the...
I need help with this question! 1. A car turning in a circle is acceleratring in...
I need help with this question! 1. A car turning in a circle is acceleratring in the centripetal direction, even if the speed is constant. This centripetal acceleration is the cause of a radially inward directed net force. On a level road this net force is the friction force acting from the road on the tires. You already looked at examples for this. On racetracks and also highway turns the reliance on friction can be reduced by "banking" the road....
5. A passenger of mass 85 kg is riding in an elevator while The scale only reads the normal force it exerts on the (Note that 1 b 0.453 kg 4.45 N) a) What standing on a platform scale. does the s...
5. A passenger of mass 85 kg is riding in an elevator while The scale only reads the normal force it exerts on the (Note that 1 b 0.453 kg 4.45 N) a) What standing on a platform scale. does the scale read in pounds (lb) when the elevator is not moving? elevator is moving upward with an acceleration of 3.5 m/s?? c) What does the scale read in pounds (b) when the elevator is same acceleration of 3.5 m/s??...
A 780 kg car is driving around a comer with a radius of 25 m at...
A 780 kg car is driving around a comer with a radius of 25 m at a velocity of 14 m/s. a) Draw a FBD of the car on the corner. Be sure to indicate which direction is towards the center of the corner. b) Use the FBD to find an equation for the normal force and the force due to friction c) What is the smallest possible coefficient of friction between the tires and the road without the car...
A toy car of mass 0.35 kg travels along a circular banked road, with banking angle...
A toy car of mass 0.35 kg travels along a circular banked road, with banking angle 30°. The circle has radius 0.80 m. Sarah wants to make the car move as fast as possible, but if it goes too fast, it slips off the road. Therefore, Sarah cuts a 0.80- meter piece of string, attaches one end to the car, and attaches the other end to a nail stuck in the center of the circle. Unfortunately, the string is thin...
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...
1. An unknown mass (mı) on a rough horizontal surface is attached by a wire that passes over a massless, frictionless pulley to a 2.50kg mass (m2) as shown below. The bottom of the hanging mass is 1....
1. An unknown mass (mı) on a rough horizontal surface is attached by a wire that passes over a massless, frictionless pulley to a 2.50kg mass (m2) as shown below. The bottom of the hanging mass is 1.50m above the floor. The system is released from rest at t-0s and the 2.50kg mass strikes the floor 0.82s later. The system is now returned to its initial position and a 1.20kg mass is placed on top of the block of mass...
1. A car travels at constant speed around a horizontal circular corner of radius 5 m. n (a) Given that the car just starts to skid if its speed is 12 km/h, find the frictional force acting on the car. (b) Assuming the same frictional force is acting, calculate the car's smallest possible turning radius if the speed is 30 km/h. (c) Calculate the turning radius for the car travelling at 12 km/h in wet conditions where the frictional force...
QUESTION 24 A truck of mass 3000 kg moves around an unbanked corner of radius 81.2 m. If the coefficient of static friction between the truck tires and the road is 0.800, what is the maximum speed that the truck can move without slipping, in units of m/s? QUESTION 25 Find the mass of an object, in units of kilograms, if a resultant force of 11.2 N will give it an acceleration of 2.00 m/s. QUESTION 26 What is the...
5. A passenger of mass 85 kg is riding in an elevator while The scale only reads the normal force it exerts on the (Note that 1 b 0.453 kg 4.45 N) a) What standing on a platform scale. does the scale read in pounds (lb) when the elevator is not moving? elevator is moving upward with an acceleration of 3.5 m/s?? c) What does the scale read in pounds (b) when the elevator is same acceleration of 3.5 m/s??...
A 780 kg car is driving around a comer with a radius of 25 m at a velocity of 14 m/s. a) Draw a FBD of the car on the corner. Be sure to indicate which direction is towards the center of the corner. b) Use the FBD to find an equation for the normal force and the force due to friction c) What is the smallest possible coefficient of friction between the tires and the road without the car...
A toy car of mass 0.35 kg travels along a circular banked road, with banking angle 30°. The circle has radius 0.80 m. Sarah wants to make the car move as fast as possible, but if it goes too fast, it slips off the road. Therefore, Sarah cuts a 0.80- meter piece of string, attaches one end to the car, and attaches the other end to a nail stuck in the center of the circle. Unfortunately, the string is thin...
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...
1. An unknown mass (mı) on a rough horizontal surface is attached by a wire that passes over a massless, frictionless pulley to a 2.50kg mass (m2) as shown below. The bottom of the hanging mass is 1.50m above the floor. The system is released from rest at t-0s and the 2.50kg mass strikes the floor 0.82s later. The system is now returned to its initial position and a 1.20kg mass is placed on top of the block of mass...
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