Problem (4) A motoreycle is traveling 80 mph (miles per hour) at point A. Knowing that the motoreycle's speed decreases at a rate of a = -(0.04 s) m/s² while traveling up a 150-meter radius hill from point A (SA = 0) to point B, determine the traction force of the motorcycle and the normal reaction the ground imparts on the motorcycle at point B. The combined mass of the motorcycle and driver is 340 kilograms. (Hint: 1,609 meters 1 mile) 60 150 m 150 m Assume friction is negligible.

Problem (4) A motoreycle is traveling 80 mph (miles per hour) at point A. Knowing that the motoreycle's speed decreases at a rate of a = -(0.04 s) m/s² while traveling up a 150-meter radius hill from point A (SA = 0) to point B, determine the traction force of the motorcycle and the normal reaction the ground imparts on the motorcycle at point B. The combined mass of the motorcycle and driver is 340 kilograms. (Hint: 1,609 meters 1 mile) 60 150 m 150 m Assume friction is negligible.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter3: Two-dimensional Kinematics

Section: Chapter Questions

Problem 65PE: An athlete crosses a 25-m-wide river by swimming perpendicular to the water current at a speed of...

See similar textbooks

Similar questions

An athlete crosses a 25-m-wide river by swimming perpendicular to the water current at a speed of 0.5 m/s relative to the water. He reaches the opposite side at a distance 40 m downstream from his starting point. How fast is the water in the river flowing with respect to the ground? What is the speed of the swimmer with respect to a friend at rest on the ground?
A projectile is launched on the Earth with a certain initial velocity and moves without air resistance. Another projectile is launched with the same initial velocity on the Moon, where the acceleration due to gravity is one-sixth as large. How does the maximum altitude of the projectile on the Moon compare with that of the projectile on the Earth? (a) It is one-sixth as large. (b) It is the same. (c) It is 6 times larger. (d) It is 6 times larger. (e) It is 36 times larger.
How can an estimate be of value even when it is off by on order of magnitude? Explain and give an example.
A plumb bob bangs from the roof of a railroad car. The car rounds a circular track of radius 300.0 m at a speed of 90.0 km/b. At what angle relative to the vertical does the plumb bob hang?
In 2004 two Martian probes successfully landed on the Red Planet. The final phase of the landing involved bouncing the probes until they came to rest (they were surrounded by protective inflated “balloons”). During one of the bounces, the telemetry (electronic data sent back to Earth) indicated that the probe too off at 25.0 m/s at an angle of 20 degrees and landed 110 m away (and then bounced again). Assuming the landing region was level, determine the acceleration due to gravity near the Martian surface.
16. A plane is circling the airport with a speed of 145ms. The radius of the plane’s path is 1870m. How long does it take for the plane to complete 1 circle around the airport?t= s*Round your answer to the nearest thousandth if necessary.
Helicopter blades withstand tremendous stresses. In addition to supporting the weight of the helicopter, they are spun at rapid rates and experience large centripetal accelerations, especially at the tip. Calculate the centripetal acceleration at the tip of a 4.00 m long helicopter blade that rotates at 5 Hz
17 - When studying kinematics, the topic of gravitation and projectile motion is unavoidable. Use the knowledge you have gained and answer the following questions about the motion of objects under gravitational acceleration. /I C A(a) If two objects are dropped from the same height, but one is on the Moon and the other here onEarth, which would hit the ground first?(b) If a beanbag is launched horizontally and another beanbag with the same mass is dropped straight down from the same height, which would hit the ground first? If this experiment were performed on the Moon, would the results be any different? Explain.
4- Objects A and B make uniform circular motions with periods of 2T and 3T, respectively, in orbits with radii of 2r and 4r. What is the ratio VA/VB of the linear velocities of the objects?
Question 21 pts The figure shows the speed as a function of time for an object in free fall near the surface of the earth. The object was dropped from rest in a long evacuated cylinder. What is the speed, in m/s, of the object 3.0 seconds after it is dropped?
Largely because of riding in cars, you are used to horizontal circular motion. Vertical circular motion would be a novelty. In this sample problem, such motion seems to defy the gravitational force. In a 1901 circus performance, Allo “Dare Devil” Diavolo introduced the stunt of riding a bicycle in a loopthe- loop Assuming that the loop is a circle with radius R= 2.7 m, what is the least speed v that Diavolo and his bicycle could have at the top of the loop to remain in contact with it there?
When sailing, the wind feels stronger when you sail upwind (“beating”) than when you are sailing downwind (“running”). Explain.