10 cmUntithillshown The2. A0.12 kg marble is started on a frictionless marble track by compressing a spring andthen releasing the marble from rest. The spring has a spring constant of 490 N/m.9dsA) How far must the spring be compressed initially so that the marble will make it overthe hill?ob gninqa art lliw how doum word berdanusl294hoving to the dight at 1.5 m/s just after theturning around?motaid16m ert no ob yaiv61g obow doum woH (B) If the spring is compressed by the distance you found in part A and then the marble islaunched, how fast will the ball be moving when it is halfway up the hill?s 261 sld1sm ert lianu bezesngmoturn to its 79%ft)m10 cmhill2. A 0.12 kg marble is started on a frictionless marble track by compressing a spring andthen releasing the marble from rest. The spring has a spring constant of 490 N/m.1 nedC) If the spring is compressed by the distance you found in part A and then the marble islaunched, how much work will the spring do on the marble?Slid adD) How much work does gravity do on the marble, from the time it is launched until itreaches the end of the track?e bne A isq ni bnuol uoy 9aib erdi yd bez2mo 2i gnhqe e il (8Slid erl qu yewiled ai ti nerlw anivom 9d llsd e lliw t261 worl ,bsrɔnuslE) Describe how energy changes form in this situation, from when the spring iscompressed until the marble has gone over the hill.

Given Height of hill h = 10 cm =0.1 m Mass m = 0.12 kg Spring constant k = 490 N/m

10 cm Untit hill The 2. A0.12 kg marble is started on a frictionless marble track by compressing a spring and then releasing the marble from rest. The spring has a spring constant of 490 N/m.ers A) How far must the spring be compressed initially so that the marble will make it over the hill? ob gninqa ard lliw how doum word bserdanus 294 oving to the ght.at 1.5 m/s just after the turning around?

10 cm Untit hill The 2. A0.12 kg marble is started on a frictionless marble track by compressing a spring and then releasing the marble from rest. The spring has a spring constant of 490 N/m.ers A) How far must the spring be compressed initially so that the marble will make it over the hill? ob gninqa ard lliw how doum word bserdanus 294 oving to the ght.at 1.5 m/s just after the turning around?

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter5: Energy

Section: Chapter Questions

Problem 72AP: In a needle biopsy, a narrow strip of tissue is extracted from a patient with a hollow needle....

See similar textbooks

Similar questions

When an 80.0-kg man stands on a pogo stick, the spring is compressed 0.120 m. (a) What is the force constant of the spring? (b) Will the spring be compressed more when he hops down the road?
Tarzan grabs a vine hanging vertically from a tall tree when he is running at 9.0 m/s. (a) How high can he swing upward? (b) Does the length of the vine affect this height?
A bungee cord is essentially a very long rubber band that can stretch up to four times its unstretched length. However, its spring constant vanes over its stretch [see Menz, P.G. “The Physics of Bungee Jumping.” The Physics Teacher (November 1993) 31: 483-487]. Take the length of the cord to be along the direction and define the stretch as the length of the cord minus its un-stretched length that is, (see below). Suppose a particular bungee cord has a spring constant, for of and for. (Recall that the of (Recall that the spring constant is the slope of the force versus its stretch (a) What is the tension in the cord when the stretch is 16.7 m (the maximum desired for a given jump)? (b) How much work must be done against the elastic force of the bungee cord to stretch It 16.7 m? Figure 7.16 (credit modification of work by Graeme Churchard)
When an 80.0kg man stands on a pogo stick, the spring is compressed 0.120 m. (a) What is the force constant of the spring? (b) Will the spring be compressed more when he hops down the read?
A 75.0-kg firefighter slides down a pole while a constant friction force of 300 N retards her motion. A horizontal 20.0-kg platform is supported by a spring at the bottom of the pole to cushion the fall. The firefighter starts from rest 4.00 m above the platform, and the spring constant is 4 000 N/m. Find (a) the firefighters speed just before she collides with the platform and (b) the maximum distance the spring is compressed. Assume the friction force acts during the entire motion.
Tarzan savings on a 30.0-m-long vine initially inclined at an angle of 37.0 with the vertical. What is his speed at the bottom of the swing (a) if he starts from rest? (b) If he pushes off with a speed of 4.00 m/s?
In a needle biopsy, a narrow strip of tissue is extracted from a patient with a hollow needle. Rather than being pushed by hand, to ensure a clean cut the needle can be fired into the patients body by a spring. Assume the needle has mass 5.60 g, the light spring has force constant 375 N/m, and the spring is originally compressed 8.10 cm to project the needle horizontally without friction. The tip of the needle then moves through 2.40 cm of skin and soft tissue, which exerts a resistive force of 7.60 N on it. Next, the needle cuts 3.50 cm into an organ, which exerts a backward force of 9.20 N on it. Find (a) the maximum speed of the needle and (b) the speed at which a flange on the back end of the needle runs into a stop, set to limit the penetration to 5.90 cm.
A pogo stick has a spring with a force constant of 2.50104 N/m, which can be compressed 12.0 cm. To what maximum height can a child jump on the stick using only the energy in the spring, if the child and stick have a total mass of 40.0 kg? Explicitly show how you follow the steps in the Problem-Solving Strategies for Energy.
An archer pulls her bowstring back 0.400 m by exerting a force that increases uniformly from zero to 230 N. (a) What is the equivalent spring constant of the bow? (b) How much work does the archer do in pulling the bow? Figure P5.64
A 1.50-kg box rests atop a massless vertical spring with k = 4250 N/m that has been compressed by 15.0 cm from its equilibrium position. The box is released and leaves the spring when it reaches its equilibrium position. What is the maximum height the box reaches above its original position?
Describe the energy transfers and transformations for a javelin, stating from the point at which an athlete picks up the javelin and ending when the javelin is stuck into the ground after being thrown.
A toy cannon uses a spring to project a 5.30-g soft rubber ball. The spring is originally compressed by 5.00 cm and has a force constant of 8.00 N/m. When the cannon is fired, the ball moves 15.0 cm through the horizontal barrel of the cannon, and the barrel exerts a constant friction force of 0.032 0 N on the ball. (a) With what speed does the projectile leave the barrel of the cannon? (b) At what point does the hall have maximum speed? (c) What is this maximum speed?