for part a i got 4.78 , Problem 4: A block of massm=D15kg is attached to a spring with spring constant k= 790 N/m. It is initially at rest on an inclined plane that is at an angle of 0= 24 with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is 4 0.14.In the initial position, where the spring is compressed by a distance of d 0.11 m, the mass is at its lowest position and the spring is compressed the maximum amount. Take the initial gravitational energy of the block as zero. M Ctheespertta.co 50% Part (a) What is the block's initial mechanical energy, Eo in J? &50% Part (b) If the spring pushes the block up the incline, what distance, L in meters, will the block travel before coming to rest? The spring remains attached to both the block and the fixed wall throughout its motion. Grade Summary Deductions L=

for part a i got 4.78 , Problem 4: A block of massm=D15kg is attached to a spring with spring constant k= 790 N/m. It is initially at rest on an inclined plane that is at an angle of 0= 24 with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is 4 0.14.In the initial position, where the spring is compressed by a distance of d 0.11 m, the mass is at its lowest position and the spring is compressed the maximum amount. Take the initial gravitational energy of the block as zero. M Ctheespertta.co 50% Part (a) What is the block's initial mechanical energy, Eo in J? &50% Part (b) If the spring pushes the block up the incline, what distance, L in meters, will the block travel before coming to rest? The spring remains attached to both the block and the fixed wall throughout its motion. Grade Summary Deductions L=

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter6: Applications Of Newton's Laws

Section: Chapter Questions

Problem 32P: When starting a foot race, a 70.0-kg sprinter exerts an average force of 650 N backward on the...

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Question

Physics
need help in part b
for part a i got 4.78
d Problem 4: A block of mass m=15 kg is attached to a spring with spring constant k=
790 N/m. It is initially at rest on an inclined plane that is at an angle of 0=24° with respect to the
horizontal, and the coefficient of kinetic friction between the block and the plane is =0.14. In
the initial position, where the spring is compressed by a distance of d 0.11 m, the mass is at its
lowest position and the spring is compressed the maximum amount. Take the initial gravitational
energy of the block as zero.
M
Ctheespertta.co
450% Part (a) What is the block's initial mechanical energy, E, in J?
P4S0 % Part (b) If the spring pushes the block up the incline, what distance, L in meters, will the block travel before coming to rest? The spring remains
attached to both the block and the fixed wall throughout its motion.
Grade Summary
Deductions
L=
0%
need help in part b
Problem 3: A ball is suspended from a light 1.1 m string as shown. The string makes an
angle of 29 degrees with the vertical. The ball is then kicked up and to the right such that the string
remains taut the entire time the ball swings upwards. This kick gives the ball an initial velocity of
13 m/s.
L.
50% Part (a) What will be the speed, in meters per second, of the ball when it reaches its lowest point (0 = 0)?
v 2.095 v Correct!
led
&50% Part (b) What will be the maximum angle, in degrees, the string will make with the vertical?

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