Spectators watch a bicycle stunt rider travel off the end of a 57.5° ramp, rise to the top of his trajectory and, at that instant, suddenly push his bike horizontally away from him so that he falls vertically straight down, reaching the ground 0.600 s later. How far (in m) from the rider does the bicycle land has a mass mbike = 15.0 kg? Neglect air resistance and assume the ground is level. the rider has a mass mider = 76.0 kg and the bike HINT m

Spectators watch a bicycle stunt rider travel off the end of a 57.5° ramp, rise to the top of his trajectory and, at that instant, suddenly push his bike horizontally away from him so that he falls vertically straight down, reaching the ground 0.600 s later. How far (in m) from the rider does the bicycle land has a mass mbike = 15.0 kg? Neglect air resistance and assume the ground is level. the rider has a mass mider = 76.0 kg and the bike HINT m

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

The trajectory of a rock ejected from the Kilauea volcano, with a velocity of magnitude 63.9 m/s and at angle 12.1 degrees above the horizontal. The rock strikes the side of the volcano at an altitude of 90.6m lower than its starting point. Calculate the magnitude of the rock’s velocity at impact? Use g = 9.8 m/s2.
An airplane flying horizontally at a velocity of 138 m/s and at an altitude of 1500 meters when one of its wheels falls off. a) How long (in seconds) does it take the wheel to reach the ground? b) What horizontal distance (in meters) will the wheel travel before it strikes the ground?
A helicopter blade spins at exactly 115 revolutions per minute. Its tip is 6.50 m from the center of rotation. (a) Calculate the average speed (in m/s) of the blade tip in the helicopter's frame of reference. m/s (b) What is its average velocity (in m/s) over one revolution? m/s
The pin B moves outward with respect to a horizontal circular disk, and its radial coordinate r is given as a function of time by r=3t2/2 meters. The disk D turns with the time-dependent angle θ=4t2/3 rad about point A. Determine the velocity and acceleration of pin Bat t=1s.
A bicycle travels 7.50 km due east in 0.210 h, then 8.80 km at 15.0° east of north in 0.770 h, and finally another 7.50 km due east in 0.210 h to reach its destination. The time lost in turning is negligible. Assume that east is in the +x-direction and north is in the +y-direction. What is the direction of the average velocity for the entire trip? Enter the answer as an angle in degrees north of east
Two fan carts are on parallel inclined tracks are facing opposite directions. At t=0, the carts are 2.88 m apart with the fans on and they are both given a sharp push toward each other against the direction the fans are pushing them. Cart A begins (after the push) with a speed of 1.35 m/s to the right and has an acceleration of 0.44 m/s? to the left. Cart B begins (after the push) with a speed of 1.05 m/s to the left and has an acceleration to the right of 0.52 m/s?. (Hint: Keep your positive and negative directions consistent for both carts.) A a) At what two times do the two cars pass each other? b) What are the two positions at which the cars pass each other? c) What is the velocity of each car when they pass each other? d) Graph the motion of each on the position vs. time graphs and velocity vs. time graphs on the next page. time (s) time (s) (w) uojiisod velocity (m/ş)
A player hits a baseball, which has an initial velocity of 42 m/s. At the moment the ball is hit with the bat, the height of the baseball will be 0.22 m. The distance from the point of contact to the wall is 170 m. The baseball has an angle of 40 degrees with respect to the horizontal. The player will get a home run, if he or she hits the baseball pass the wall. The height of the wall is 6m. \\ a) Will the player get a homerun? if so, the by how much does the baseball clear the wall? b) Now assume that the wall is completely removed. Find the horizontal range and maximum height of the baseball. Also assume that the path of the baseball is symmetrical, so it lands at a location that is 0.22 m above the ground.
A glass container is knocked off a shelf at a height of 1.4 meters above the floor beside you. It takes you 0.35s to react to the falling object and reach out your hand in an attempt to catch the container. Will you be able to reach the container before it hits the floor?
A soccer player kicks a ball, while imparting spin to bend it. The ball starts on the ground and is kicked with an initial velocity of 15 ?/?, at an angle of elevation 30 degrees. Assume the ball was kicked north and the spin creates a constant acceleration ? to the west, which is what makes the ball follow a curved path. If the ball lands 8 meters west of the starting point, what is the value of ?? Assume the standard value of ? = 9.8 ?/?2.
An electric turntable 0.700 m in diameter is rotating about a fixed axis with an initial angular velocity of 0.200 rev/s. The angular acceleration is 0.909 rev/s².
A 126 kg crate is sitting at the top of a ramp, which is inclined at an angle of 19 degrees with respect to the horizontal. The crate is a height 0.71 m from the ground, measured vertically from the ground to the crate. Someone gives the crate a quick shove to get it moving, after which it slides down the ramp without any further assistance. The coefficient of kinetic friction between the crate and the ramp is ls = 0.23. How much time (in seconds) does it take for the crate to get to the base of the ramp?
You’ll now apply the horizontal launch to a car accident example. In this scenario, a car driver named Joshua Horton says he was driving at the speed limit of 45 mph when he hit an icy patch and drove through a guard rail of the 15 m tall bridge, before landing 24 m from the base of the bridge. Tes1ng shows that driving through the guard rail lowers a car’s speed by 10 m/s. QUESTION 3: Given the distance that the car landed from the bridge, determine what speed Joshua was actually driving before leaving the bridge. Was he telling the truth or lying? Show your calcula1ons here.