GO In Fig. 8-57, a block is released from rest at height d = 40 cm and slides down a frictionless ramp and onto a first plateau, which has length d and where the coefficient of kinetic friction is 0.50. If the block is still moving, it then slides down a second frictionless ramp through height d/ 2 and onto a lower plateau, which has length d /2 and where the coefficient of kinetic friction is again 0.50. If the block is still moving, it then slides up a frictionless ramp until it (momentarily) stops. Where does the block stop? If its final stop is on a plateau, state which one and give the distance L from the left edge of that plateau. If the block reaches the ramp, give the height H above the lower plateau where it momentarily stops. Figure 8-57 Problem 64.
GO In Fig. 8-57, a block is released from rest at height d = 40 cm and slides down a frictionless ramp and onto a first plateau, which has length d and where the coefficient of kinetic friction is 0.50. If the block is still moving, it then slides down a second frictionless ramp through height d/ 2 and onto a lower plateau, which has length d /2 and where the coefficient of kinetic friction is again 0.50. If the block is still moving, it then slides up a frictionless ramp until it (momentarily) stops. Where does the block stop? If its final stop is on a plateau, state which one and give the distance L from the left edge of that plateau. If the block reaches the ramp, give the height H above the lower plateau where it momentarily stops. Figure 8-57 Problem 64.
GO In Fig. 8-57, a block is released from rest at height d = 40 cm and slides down a frictionless ramp and onto a first plateau, which has length d and where the coefficient of kinetic friction is 0.50. If the block is still moving, it then slides down a second frictionless ramp through height d/2 and onto a lower plateau, which has length d/2 and where the coefficient of kinetic friction is again 0.50. If the block is still moving, it then slides up a frictionless ramp until it (momentarily) stops. Where does the block stop? If its final stop is on a plateau, state which one and give the distance L from the left edge of that plateau. If the block reaches the ramp, give the height H above the lower plateau where it momentarily stops.
a block is released from rest at height d = 40 cm and slides down a frictionless ramp and onto a first plateau, which has length d and where the coefficient of kinetic friction is 0.50. If the block is still moving, it then slides down a second frictionless ramp through height d/2 and onto a lower plateau, which has length d/2 and where the coefficient of kinetic friction is again 0.50. If the block is still moving, it then slides up a frictionless ramp until it (momentarily) stops. Where does the block stop? If its final stop is on a plateau, state which one and give the distance L from the left edge of that plateau. If the block reaches the ramp, give the height H above the lower plateau where it momentarily stops.
In the figure, a block is released from rest at height d = 36 cm and slides down a frictionless ramp and onto a first plateau, which has
length d and where the coefficient of kinetic friction is 0.5. If the block is still moving, it then slides down a second frictionless ramp
through height d/2 and onto a lower plateau, which has length d/2 and where the coefficient of kinetic friction is again 0.5. If the block
is still moving, it then slides up a frictionless ramp until it (momentarily) stops. Where does the block stop? If its final stop is on a
plateau, state which one and give the distance L from the left edge of that plateau. If the block reaches the ramp, give the height H
above the lower plateau where it momentarily stops.
(a) Does the block stop on the first plateau, second plateau, or on the ramp? (b) Give L or H, which ever is appropriate.
(a)
on the ramp
(b) Number i 18
Units
d/2
d/2
An 8 kg block initially at rest is pulled to the right for 3 m with a force of 12 N over a surface.Determine its final speed if:(a) the surface has no friction and(b) the surface has a coefficient of kinetic friction of 0.15
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