A block of mass m = 3.20 x 10² g is dragged with a string across a rough horizontal table. The string tension is T = 2.47 N, and it pulls upward at an angle of d = 49.0⁰ with the horizontal. At one particular instant, the block is moving at a speed of u = 6.10 m/s. The coefficient of kinetic friction between the block and the table is k = 0.594. What is the power Pr supplied to the block by the string tension? PT = W m Ø 7

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Chapter5: Displacement And Force In Two Dimensions
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please help with this question i’m extremely stuck!! thank you so much :))
A block of mass m = 3.20 x 10² g is dragged with a string
across a rough horizontal table. The string tension is
T = 2.47 N, and it pulls upward at an angle of = 49.0°
with the horizontal. At one particular instant, the block is
moving at a speed of u = 6.10 m/s. The coefficient of kinetic
friction between the block and the table is k = 0.594.
What is the power Pr supplied to the block by the
string tension?
PT =
What is the power Pf supplied by the force of friction?
P₁ =
At this instant, the block's speed is
decreasing.
O impossible to determine.
O increasing.
constant.
W
W
m
A
7
Transcribed Image Text:A block of mass m = 3.20 x 10² g is dragged with a string across a rough horizontal table. The string tension is T = 2.47 N, and it pulls upward at an angle of = 49.0° with the horizontal. At one particular instant, the block is moving at a speed of u = 6.10 m/s. The coefficient of kinetic friction between the block and the table is k = 0.594. What is the power Pr supplied to the block by the string tension? PT = What is the power Pf supplied by the force of friction? P₁ = At this instant, the block's speed is decreasing. O impossible to determine. O increasing. constant. W W m A 7
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