Homework Answers
Using work energy principle
KE = PE
0.5mv^2 = mgh
v = sqrt(2gh)
= sqrt(2*9.8*0.44) = 2.94 m/s
By using projectile
v^2 - u^2 = 2gH
0 - u^2 = 2*-9.8*0.44
u = 2.94 m/s
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Note: for this problem, you must show all of your work for full credit. 5. A...
Note: for this problem, you must show all of your work for full credit. 6. A...
Note: for this problem, you must show all of your work for full credit. 6. A 75kg basketball player performs a vertical jump of 0.30m. Use the work/energy approach to determine his takeoff velocity in the vertical direction. Then, use your projectile motion equations to determine the athlete's takeoff velocity. Do your two answers agree?
A 75-kg volleyball player performs a maximum-effort vertical jump with an initial velocity of 3 m/s....
A 75-kg volleyball player performs a maximum-effort vertical jump with an initial velocity of 3 m/s. The player leaves the ground with an upright body position and also touches down with the same body position. Answer the following: ua A. How much will the player's center of mass (COM) travel in the air along the vertical direction during the ascending phase of the jump? Compute the maximum kinetic energy of the player during the jump. C. Compute the maximum potential...
DIRECTIONS: Work the problem. You must show all work to receive credit, and you must return...
DIRECTIONS: Work the problem. You must show all work to receive credit, and you must return this sheet. Be sure to explain carefully your answers and show your work in a neat and organized manner. The problem is worth 20 points Two students studying one-dimensional collisions obtained the graph shown below for the position versus time of the projectile cart and the target cart. The projectile cart and the target cart did not stick together after the collision. Do not...
please answer both questions. My Notes Ask Your Teacher asketball star covers 2.55 m horizontally in...
please answer both questions.
My Notes Ask Your Teacher asketball star covers 2.55 m horizontally in a jump to dunk the ball. His motion through space can be modeled precisely as at of a particle at his center of mass. His center of mass is at elevation 1.02 m when he leaves the floor. It reaches a maximum height of 1.80 m above the floor and is at elevation 0.950 m when he touches down again. (a) Determine his time...
Recitation Work - 5 In order to get full credit, you need to show all your...
Recitation Work - 5 In order to get full credit, you need to
show all your work.
question 1.
A force Fx = cx^3 (c = 3.0 N/m^3) acts on an object with mass 40
kg that is sliding along a rough horizontal floor (x-axis) with
coefficient of kinetic friction of 0.2. A) What is the work done by
the force Fx on this object as it slides from x1 = 0.0 m to x2 =
6.0 m?
B) What...
You must show all your work to receive full credit for each problem. Final answers must...
You must show all your work to receive full credit for each problem. Final answers must be simplified and circled. 1. Complete the table below (use fractions not decimals!) and use it to graph the function f(x) = 3*. X у -2 Domain -1 Range O coordinates of the y-intercept 1 equation of the asymptote N
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its is 30 m/s at an angle of 25 degress You must show all work in...
its is 30 m/s at an angle of 25 degress
You must show all work in the space provided to receive full credit. (GUESS) 1. LI Ping Phar, the famous Chinese ski jumper, leaves the ramp with an initial velocity of 30 at an angle of_a5 a. Calculate the initial components of velocity of the jumper? b. Determine Li's acceleration (horizontal and vertical) at the highest position of his jump? C. If the jumper lands at the same height from...
You must SHOW ALL OF YOUR WORK, including unit analysis, to receive full credit for each...
You must SHOW ALL OF YOUR WORK, including unit analysis, to receive full credit for each problem. It is often the case that the correct method of solution is more important than the numerical answer. 1. The speed of a certain proton is 045 Mm/s. If the uncertainty in its momentum is to be reduced to 0.0100%, what uncertainty in its location must be tolerated? 2. The work function for metallic cesium is 2.14 eV. Calculate the kinetic energy and...
ECTION C: FUNDAMENTAL PROBLEMS Note: Show every details of work to get full credit in workout...
ECTION C: FUNDAMENTAL PROBLEMS Note: Show every details of work to get full credit in workout problems.) 6. A 8.0-kg block slides down a smooth inclined plane. The plane is 20.0 m long and is inclined at an angle of 40° with the horizontal. Find (a) the acceleration of the block, and (b) the velocity of the block at the bottom of the plane. 40° .) Draw free-body diagram in the above figure. (Show your X- and y-axes and all...
Note: for this problem, you must show all of your work for full credit. 6. A 75kg basketball player performs a vertical jump of 0.30m. Use the work/energy approach to determine his takeoff velocity in the vertical direction. Then, use your projectile motion equations to determine the athlete's takeoff velocity. Do your two answers agree?
A 75-kg volleyball player performs a maximum-effort vertical jump with an initial velocity of 3 m/s. The player leaves the ground with an upright body position and also touches down with the same body position. Answer the following: ua A. How much will the player's center of mass (COM) travel in the air along the vertical direction during the ascending phase of the jump? Compute the maximum kinetic energy of the player during the jump. C. Compute the maximum potential...
DIRECTIONS: Work the problem. You must show all work to receive credit, and you must return this sheet. Be sure to explain carefully your answers and show your work in a neat and organized manner. The problem is worth 20 points Two students studying one-dimensional collisions obtained the graph shown below for the position versus time of the projectile cart and the target cart. The projectile cart and the target cart did not stick together after the collision. Do not...
please answer both questions.
My Notes Ask Your Teacher asketball star covers 2.55 m horizontally in a jump to dunk the ball. His motion through space can be modeled precisely as at of a particle at his center of mass. His center of mass is at elevation 1.02 m when he leaves the floor. It reaches a maximum height of 1.80 m above the floor and is at elevation 0.950 m when he touches down again. (a) Determine his time...
Recitation Work - 5 In order to get full credit, you need to
show all your work.
question 1.
A force Fx = cx^3 (c = 3.0 N/m^3) acts on an object with mass 40
kg that is sliding along a rough horizontal floor (x-axis) with
coefficient of kinetic friction of 0.2. A) What is the work done by
the force Fx on this object as it slides from x1 = 0.0 m to x2 =
6.0 m?
B) What...
You must show all your work to receive full credit for each problem. Final answers must be simplified and circled. 1. Complete the table below (use fractions not decimals!) and use it to graph the function f(x) = 3*. X у -2 Domain -1 Range O coordinates of the y-intercept 1 equation of the asymptote N
Motion can be derived from the slope of the graph? 8 . Wild equation Show how position vs time and velocity vs time graphs are connected. Include the following information in your summary: • What are the 5 variables you need for accelerated motion problems? How do you determine the equation you will need to use to solve the problem? What are the accelerated motion kinematics equations? What do +/- mean for kinematics? What combinations of (+/-) velocity and acceleration...
its is 30 m/s at an angle of 25 degress
You must show all work in the space provided to receive full credit. (GUESS) 1. LI Ping Phar, the famous Chinese ski jumper, leaves the ramp with an initial velocity of 30 at an angle of_a5 a. Calculate the initial components of velocity of the jumper? b. Determine Li's acceleration (horizontal and vertical) at the highest position of his jump? C. If the jumper lands at the same height from...
You must SHOW ALL OF YOUR WORK, including unit analysis, to receive full credit for each problem. It is often the case that the correct method of solution is more important than the numerical answer. 1. The speed of a certain proton is 045 Mm/s. If the uncertainty in its momentum is to be reduced to 0.0100%, what uncertainty in its location must be tolerated? 2. The work function for metallic cesium is 2.14 eV. Calculate the kinetic energy and...
ECTION C: FUNDAMENTAL PROBLEMS Note: Show every details of work to get full credit in workout problems.) 6. A 8.0-kg block slides down a smooth inclined plane. The plane is 20.0 m long and is inclined at an angle of 40° with the horizontal. Find (a) the acceleration of the block, and (b) the velocity of the block at the bottom of the plane. 40° .) Draw free-body diagram in the above figure. (Show your X- and y-axes and all...
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