A R=!1.60 m m = 0.200 kg 3.00 m B C
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In a truck-loading station at a post office, a small 0.200
kg package is released from rest at point A on a track that is onequarter
of a circle with radius 1.60 m. The size of the
package is much less than 1.60 m, so the package can be treated as
a particle. It slides down the track and reaches point B with a speed
of 4.80 m>s. From point B, it slides on a level surface a distance of
3.00 m to point C, where it comes to rest. (a) What is the coefficient
of kinetic friction on the horizontal surface? (b) How much work
is done on the package by friction as it slides down the circular arc
from A to B?
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- The drawing shows a skateboarder moving at 6.80 m/s along a horizontal section of a track that is slanted upward by 0 = 41.0° above the horizontal at its end, which is 0.780 m above the ground. When she leaves the track, she follows the characteristic path of projectile motion. Ignoring friction and air resistance, find the maximum height H to which she rises above the end of the track. 6.80m/s 0.780mThe drawing shows a skateboarder moving at 6.70 m/s along a horizontal section of a track that is slanted upward by 0 = 48.0° above the horizontal at its end, which is 0.530 m above the ground. When she leaves the track, she follows the characteristic path of projectile motion. Ignoring friction and air resistance, find the maximum height H to which she rises above the end of the track. 6.70m/s 0.530mpervious question: OK, same sort of track, but now with d = 2.12 m. Now suppose the blocks starts on the track at x = 4.10 m. The block is given a push to the left and begins to slide up the track, eventually reaching its maximum height at x = 0, at which point it turns around and begins sliding down. What was its initial speed in this case? New question Here we go again this time, d = 4.09 m. Suppose the block starts on the track at x = 0. What minimum initial velocity (moving to the right) must the block have such that it will leave the track at x = 0 and go into freefall? 12.24 m/s 11.15 m/s 8.96 m/s 6.34 m/s
- Determine which df th following equations can be eigen function equation and qive tk values an sinfx) dx 2 d? sin TTX 2 dx2 a x uP +) -ih 으 ek T 2ikyA 2 kg block slides down a frictionless incline from a height of 5 m. What is its speed at the bottom of the incline? (Assume g = 9.8 m/s²)I need help with this physics question #2
- QUESTION 8 OK, same sort of track, but now with d = 2.10 m. Now suppose the blocks starts on the track at x = 4.76 m. The block is given a push to the left and begins to slide up the track, eventually reaching its maximum height at x = 0, at which point it turns around and begins sliding down. What was its initial speed in this case? A 8.30 m/s B 14.55 m/s C 10.29 m/s D 17.39 m/sA 9.0-kg bunny slides from rest down a frictionless incline from a height of 5.0 m. A constant frictional force, introduced at point A, brings the bunny to rest at point B, 19 m to the right of point A. What is the Speed of the bunny before it reaches point A? What is the coefficient of kinetic friction, µk, of the surface from A to B?A man on a motorcycle plans to make a jump as shown in the figure. If he leaves the ramp with a speed of 33.0 m/s and has a speed of 30.9 m/s at the top of his trajectory, determine his maximum height (h) (in m) above the end of the ramp. Ignore friction and air resistance. m