Homework Answers
I did the question without plotting the value in graph, but I have given a graph.
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Plot the force P required to begin moving the 83-kg crate up the 13° incline starting...
in 0.40 Hk 0.25 20° At a certain instant, the m 30 kg crate has a velocity of vo 10 m/s up the 20° incline Calculate (a) the time t required for the crate to come to rest t Number (b) the correspondi...
in 0.40 Hk 0.25 20° At a certain instant, the m 30 kg crate has a velocity of vo 10 m/s up the 20° incline Calculate (a) the time t required for the crate to come to rest t Number (b) the corresponding distance d travelled, and dNumber (c) the distance d' travelled when the crate speed has been reduced to 5 m/s. d'#| Number
in 0.40 Hk 0.25 20° At a certain instant, the m 30 kg crate has...
please explain steps thanks The force P is applied to the 43-kg block when it is...
please explain steps thanks
The force P is applied to the 43-kg block when it is at rest. Determine the magnitude and direction of the friction force exerted by the surface on the block if (a) P = 0 b) P-155 N, and c) P = 225 N d what value of P is required to initiate motion up the incline? The static and ki etic coefficients of friction between the block and the incline are μs = 0.21 and...
m A block with mass m, - 8.9 kg is on an incline with an angle...
m A block with mass m, - 8.9 kg is on an incline with an angle 8 - 24" with respect to the horizontal. For the first question there is no friction, but for the rest of this problem the coefficients of friction are: Pk - 0.23 and Ms - 0.253. 1) When there is no friction, what is the magnitude of the acceleration of the block? 3.99 m/s2 Submit Your submissions: 3.99 Computed value: 3.99 Feedback: Correct! Submitted: Wednesday,...
A block with mass m1 = 9.1 kg is on an incline with an angle θ...
A block with mass m1 = 9.1 kg is on an incline with an angle θ = 31° with respect to the horizontal. For the first question there is no friction, but for the rest of this problem the coefficients of friction are: μk = 0.3 and μs = 0.33. 1) To keep the mass from accelerating, a spring is attached. What is the minimum spring constant of the spring to keep the block from sliding if it extends x...
c) 353 J 13. A 200 kg roller coaster starts from 50 m above the ground....
c) 353 J 13. A 200 kg roller coaster starts from 50 m above the ground. (a) 5 It falls toward the ground with out any friction then once it ((c) reaches the ground level, the brakes are applied over 30 m 19. A in order to bring the coaster to a complete stop. How much ms-1 work is done by the brakes? 20 N (a) 10 x10 J (c)-10 x10 J 14. A 7 kg ball is dropped from...
Calculate the magnitude of the normal force on a 25.2 kg block resting on the floor...
Calculate the magnitude of the normal force on a 25.2 kg block resting on the floor of an elevator that is accelerating upward at 4.78 m/s 7. a) 367 N b)r! 2 14 Nulingam sit ailarlw .tahn l 'no noianlo004 na zoogrobnu taido ga 0.0 Л c) 612 N d) 913 N .1 8. A 3.00-kg block starts from rest at the top of a 36.0 incline and slides 2.00 m down the incline in 1.75 s. Find the acceleration...
A horizontal force P pushes a 10 kg mass across a floor. What value of P...
A horizontal force P pushes a 10 kg mass across a floor. What value of P is needed to move the block with an acceleration of 2 m/s2 if the coefficient of kinetic friction os 0.4? Answer is 59N. I am unsure how to solve the problem and get the correct answer. Please help! Thank you!
A 2.0-kg block slides down a frictionless incline from point A to point B. A force...
A 2.0-kg block slides down a frictionless incline from point A to point B. A force (magnit on the block between A and B, as shown. Points A and B are 2.0 m apart.If the kinetic A is 10 J, what is the kinetic energy of the block at B? O N e blo A. a. 27 J b. 20 J c. 24 J e. 37 J ower end supported by a horizontal surface. 13. A spring (k-600 N/m) is...
13 A 1.0 m radius grinding wheel takes 55 s to speed up from 20 rad/sto...
13 A 1.0 m radius grinding wheel takes 55 s to speed up from 20 rad/sto 11.0 rad/s. What is the wheels average angular acceleration? a 9 6 radis b. 4 8 radis c 16 radis d 0.33 rad's fit 14. A bowing ball has a mass of 80 kg a moment of inertia of 28 x 107 kg*mand a radius of 0.10 m rolls down the lane without slipping at a linear speed of 40 m/s, what is its...
Help me to solve three questions Question 4, 5,6 y a person who rises at constant...
Help me to solve three questions Question 4, 5,6
y a person who rises at constant to the first floor (a) by using the g a rope. Does the amount of on the method conclude about liil Tun velocity? 12. Give an example in which the work done by the force of kinetic friction is (a) negative, and (b) positive. 9. (1) wor off along a frictionless horizontal s at 37 above the horizontal. force on the block? man initial...
in 0.40 Hk 0.25 20° At a certain instant, the m 30 kg crate has a velocity of vo 10 m/s up the 20° incline Calculate (a) the time t required for the crate to come to rest t Number (b) the corresponding distance d travelled, and dNumber (c) the distance d' travelled when the crate speed has been reduced to 5 m/s. d'#| Number
in 0.40 Hk 0.25 20° At a certain instant, the m 30 kg crate has...
please explain steps thanks
The force P is applied to the 43-kg block when it is at rest. Determine the magnitude and direction of the friction force exerted by the surface on the block if (a) P = 0 b) P-155 N, and c) P = 225 N d what value of P is required to initiate motion up the incline? The static and ki etic coefficients of friction between the block and the incline are μs = 0.21 and...
m A block with mass m, - 8.9 kg is on an incline with an angle 8 - 24" with respect to the horizontal. For the first question there is no friction, but for the rest of this problem the coefficients of friction are: Pk - 0.23 and Ms - 0.253. 1) When there is no friction, what is the magnitude of the acceleration of the block? 3.99 m/s2 Submit Your submissions: 3.99 Computed value: 3.99 Feedback: Correct! Submitted: Wednesday,...
c) 353 J 13. A 200 kg roller coaster starts from 50 m above the ground. (a) 5 It falls toward the ground with out any friction then once it ((c) reaches the ground level, the brakes are applied over 30 m 19. A in order to bring the coaster to a complete stop. How much ms-1 work is done by the brakes? 20 N (a) 10 x10 J (c)-10 x10 J 14. A 7 kg ball is dropped from...
Calculate the magnitude of the normal force on a 25.2 kg block resting on the floor of an elevator that is accelerating upward at 4.78 m/s 7. a) 367 N b)r! 2 14 Nulingam sit ailarlw .tahn l 'no noianlo004 na zoogrobnu taido ga 0.0 Л c) 612 N d) 913 N .1 8. A 3.00-kg block starts from rest at the top of a 36.0 incline and slides 2.00 m down the incline in 1.75 s. Find the acceleration...
A 2.0-kg block slides down a frictionless incline from point A to point B. A force (magnit on the block between A and B, as shown. Points A and B are 2.0 m apart.If the kinetic A is 10 J, what is the kinetic energy of the block at B? O N e blo A. a. 27 J b. 20 J c. 24 J e. 37 J ower end supported by a horizontal surface. 13. A spring (k-600 N/m) is...
13 A 1.0 m radius grinding wheel takes 55 s to speed up from 20 rad/sto 11.0 rad/s. What is the wheels average angular acceleration? a 9 6 radis b. 4 8 radis c 16 radis d 0.33 rad's fit 14. A bowing ball has a mass of 80 kg a moment of inertia of 28 x 107 kg*mand a radius of 0.10 m rolls down the lane without slipping at a linear speed of 40 m/s, what is its...
Help me to solve three questions Question 4, 5,6
y a person who rises at constant to the first floor (a) by using the g a rope. Does the amount of on the method conclude about liil Tun velocity? 12. Give an example in which the work done by the force of kinetic friction is (a) negative, and (b) positive. 9. (1) wor off along a frictionless horizontal s at 37 above the horizontal. force on the block? man initial...
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