2. A crate is given an initial speed of 3.0 m/sup a 25° inclined plane. As (a) What is the acceleration of the crate as it goes up the incline? (b) How far up the plane will it go? (c) What is the acceleration of the crate as it goes down the incline? (d) What is the crate's speed when it gets to the bottom of the inclir (e) In this problem we assumed that after reaching its highest poi gan to slide backdown. Given that this happens, what can yo coefficient of static friction?

2. A crate is given an initial speed of 3.0 m/sup a 25° inclined plane. As (a) What is the acceleration of the crate as it goes up the incline? (b) How far up the plane will it go? (c) What is the acceleration of the crate as it goes down the incline? (d) What is the crate's speed when it gets to the bottom of the inclir (e) In this problem we assumed that after reaching its highest poi gan to slide backdown. Given that this happens, what can yo coefficient of static friction?

Name: 2. A crate is given an initial speed of 3.0 m/s up a 25° inclined pla
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Description: 2. A crate is given an initial speed of 3.0 m/s up a 25° inclined plane. Assume uk = 0.17.(a) What is the acceleration of the crate as it goes up the incline?(b) How far up the plane will it go?(c) What is the acceleration of the crate as it goes do

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter2: Motion In One Dimension

Section: Chapter Questions

Problem 11P: The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing its prey in a short sprint, a...

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The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing its prey in a short sprint, a cheetah starts from rest and runs 45 m in a straight line, reaching a final speed of 72 km/h. (a) Determine the cheetahs average acceleration during the short sprint, and (b) find its displacement at t = 3.5 s.
Traumatic brain injury such as concussion results when the head undergoes a very large acceleration. Generally, an acceleration less than 800 m/s2 lasting for any length of time will not cause injury, whereas an acceleration greater than 1 000 m/s2 lasting tor at least 1 ms will cause injury. Suppose; a small child rolls off a bed that is 0.40 m above the floor. If the floor is hardwood, the childs head is brought to rest in approximately 2.0 min. If the floor is carpeted, this stopping distance is increased to about 1.0 cm. Calculate the magnitude and duration of the deceleration. In both cases, to determine the risk of injury. Assume the child remains horizontal during the fall to the floor. Note that a more complicated fall could result in a head velocity greater or less than the speed you calculate.
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From rest, the cheetah can accelerate at 8.8 m/s2 and reach a top speed of 30 m/s (108 km/h)! It can maintain this maximum speed over a distance of about 400 meters before it needs to stop.On the other hand, the Thomson’s gazelle has a top speed of 70 km/h, which is less than the cheetah’s, but it can maintain this top speed for a while as well. From rest, the gazelle can accelerate at 4.5 m/s2 to reach its top speed. When a cheetah goes after a gazelle, success or failure is a simple matter of kinematics: you will determine if the cheetah’s high speed is enough to allow it to reach its prey before it runs out of steam (or time).You will apply basic kinematics and simple assumptions to determine how a chase can play out. The Scene:A cheetah has spotted a gazelle. At the same instant the cheetah leaps into action, the gazelle has spotted him and starts heading directly away.Q1. After what total distance from rest must the cheetah stop? (clearly show calculations and substitutions) Q2.…
From rest, the cheetah can accelerate at 8.8 m/s2 and reach a top speed of 30 m/s (108 km/h)! It can maintain this maximum speed over a distance of about 400 meters before it needs to stop.On the other hand, the Thomson’s gazelle has a top speed of 70 km/h, which is less than the cheetah’s, but it can maintain this top speed for a while as well. From rest, the gazelle can accelerate at 4.5 m/s2 to reach its top speed. When a cheetah goes after a gazelle, success or failure is a simple matter of kinematics: you will determine if the cheetah’s high speed is enough to allow it to reach its prey before it runs out of steam (or time).You will apply basic kinematics and simple assumptions to determine how a chase can play out. Q2. In the elapsed time that the cheetah started and must stop, what distance can the gazelle cover? (again clearly show your calculations) Why is the 70 multiplied by 5/18?
From rest, the cheetah can accelerate at 8.8 m/s2 and reach a top speed of 30 m/s (108 km/h)! It can maintain this maximum speed over a distance of about 400 meters before it needs to stop.On the other hand, the Thomson’s gazelle has a top speed of 70 km/h, which is less than the cheetah’s, but it can maintain this top speed for a while as well. From rest, the gazelle can accelerate at 4.5 m/s2 to reach its top speed. Q1. After what total distance from rest must the cheetah stop? (clearly show calculations) Q2. In the elapsed time that the cheetah started and must stop, what distance can the gazelle cover? (again clearly show your calculations)
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