Two students are conducting an experiment in which they are trying to find a relationship between the angle of incline of a ramp and the final speed a car reaches when rolling down the ramp. In order to collect their data, the students must determine the final speed of the car at the bottom of the ramp. The students discuss how they should determine this speed. Student 1: “We need to measure the length of the ramp and the time it takes the car to roll down it. Then we can divide the total distance by the total time to find the final speed.” What is wrong with Student 1’s method for determining the final speed? This method will only determine the average speed, not the final speed. This method will determine the acceleration, not the final speed. This method does not account for the height of the ramp. This method does not take into account the angle of the ramp.

T3.14 Please help me answer this physics question.

Please answer question 2

5. A block m= 5kg sits on a horizontal surface with coefficient of u = 0.2 between the block and the surface. A string runs from this block over a cylinder wheel of radius R = 10 cm and mass m, =2 kg and is attached to a hanging 7 kg friction mass. a. Find the acceleration of the masses, the angular acceleration of the wheel, and the tension in the string on each side. b. Use acceleration to find the velocity after block M moved down by h= 0.5m M

You are swinging a 0.25 kg water balloon vertically. The distance from your shoulder (acting as the center of rotation) and the water balloon is about 0.65 m. You estimate the water balloon is traveling at 7.0 m/s. At the very top of the circular path, how much force is your hand holding the water balloon? Enter absolute value. Hint: the water balloon is experiencing uniform circular motion.

The shaft of an elevator motor turns clockwise at 180 rpm for 10 s, is at rest for 15 s, then turns counterclockwise at 240 rpm for 12.5 s. What is the angular displacement of the shaft during this motion? Draw angular position and angular velocity graphs for the shaft’s motion

A string is wound around a solid disk with radius of 0.080m and mass of 0.65kg. An object with a mass of 0.50kg is attached to the string.a. Find the acceleration of the hanging mass when it is released.b. Through what angle (in radians) does the disk turn in 1.0s if the disk starts atrest?c. What vertical distance would the mass fall during the 1.0s?

A ceiling fan with 83-cm-diameter blades is turning at 69 rpm. Suppose the fan coasts to a stop 25 s after being turned off. Part A What is the speed of the tip of a blade 10 s after the fan is turned off? Express your answer to two significant figures and include the appropriate units. V = Submit Part B μA Value Request Answer Units Number of revolutions = Through how many revolutions does the fan turn while stopping? Express your answer using two significant figures. ? ΠΑΣΦ ?

The blades in a blender rotate at a rate of 6500 rpm. When the motor is turned off during operation, the blades slow to rest in 3.5 s. What is the angular acceleration as the blades slow down? Express your answer to two significant figures and include the appropriate units. a = ________

Given this image, assume it has friction. After rolling down the left hill, the boulder then continues up an adjacent hill on the right, reaching a vertical height of 25m before coming to a stop. It travelled a total distance of d= 500m. Calculate the average friction force on the boulder.