A 7.80-g bullet moving at 570 m/s penetrates a tree trunk to a depth of 5.30...
A 7.80-g bullet moving at 570 m/s penetrates a tree trunk to a depth of 5.30 cm.
(a) Use work and energy considerations to find the average
frictional force that stops the bullet.
N
(b) Assuming the frictional force is constant, determine how much
time elapses between the moment the bullet enters the tree and the
moment it stops moving.
s
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A 7.80-g bullet moving at 570 m/s penetrates a tree trunk to a
depth of 5.30...
A 7.80 g bullet moving at 530 m/s penetrates a tree trunk to a depth of...
A 7.80 g bullet moving at 530 m/s penetrates a tree trunk to a depth of 5.40 cm. (a) Use work and energy considerations to find the average frictional force that stops the bullet. (b) Assuming the frictional force is constant, determine how much time elapses between the moment the bullet enters the tree and the moment it stops moving.
A 7.80-9 bullet moving at 470 m/s penetrates a tree trunk to a depth of 4.90...
A 7.80-9 bullet moving at 470 m/s penetrates a tree trunk to a depth of 4.90 cm. (a) Use work and energy considerations to find the average frictional force that stops the bullet. 18728.48 Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. N (b) Assuming the frictional force is...
A 7.80 g bullet is initially moving at 540 m/s just before it penetrates a block...
A 7.80 g bullet is initially moving at 540 m/s just before it penetrates a block of wood to a depth of 6.60 cm. (a) What is the magnitude of the average frictional force (in N) that is exerted on the bullet while it is moving through the block of wood? Use work and energy considerations to obtain your answer. (b) Assuming the frictional force is constant, how much time (in s) elapses between the moment the bullet enters the...
A bullet with a mass of 5.04 g and a speed of 597 m/s penetrates a...
A bullet with a mass of 5.04 g and a speed of 597 m/s penetrates a tree to a depth of 4.05 cm. (a) Use work and energy considerations to find the average frictional force that stops the bullet. N (b) Assuming that the frictional force is constant, determine how much time elapsed between the moment the bullet entered the tree and the moment it stopped. s A force F = (3x i + 4y j) N acts on an...
1) A 67-kg base runner begins his slide into second base when he is moving at...
1) A 67-kg base runner begins his slide into second base when he is moving at a speed of 3.7 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches the base. (a) How much mechanical energy is lost due to friction acting on the runner? (b) How far does he slide? 2) A running 53-kg cheetah has a top speed of 31 m/s. (a) What...
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A 3.90 g bullet moving at 300 m/s enters and stops in an initially stationary 2.80...
A 3.90 g bullet moving at 300 m/s enters and stops in an initially stationary 2.80 kg wooden block on a horizontal frictionless surface. What's the speed of the bullet/ block combination? What fraction of the bullet's kinetic energy was lost in this perfectly inelastic collision? How much work was done in stopping the bullet? If the bullet penetrated 5.00 cm into the wood, what was the average stopping force?
1. A bullet moving at 200 m/sec strikes a tree and penetrates a distance of 0.75...
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I need a step by step on 1 and 2 so I can teach myself. 1....
I need a step by step on 1 and 2 so I can teach myself.
1. A solid, uniform sphere with a mass of 2.0 kg is rolling from rest down an incline plane from the top of the plane. The incline plane makes an angle of 20° with the horizontal and has a height of 2.0 m. At the bottom of the incline plane, the surface levels out to a frictionless horizontal surface. A spring with a spring constant...
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A 7.80-9 bullet moving at 470 m/s penetrates a tree trunk to a depth of 4.90 cm. (a) Use work and energy considerations to find the average frictional force that stops the bullet. 18728.48 Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. N (b) Assuming the frictional force is...
1. A bullet moving at 200 m/sec strikes a tree and penetrates a distance of 0.75 cm into the tree before stopping. What was the deceleration of the bullet? How long did it take the bullet to stop? Assume constant deceleration.
I need a step by step on 1 and 2 so I can teach myself.
1. A solid, uniform sphere with a mass of 2.0 kg is rolling from rest down an incline plane from the top of the plane. The incline plane makes an angle of 20° with the horizontal and has a height of 2.0 m. At the bottom of the incline plane, the surface levels out to a frictionless horizontal surface. A spring with a spring constant...
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