A scientist finds an unusual object and decides to study it. Which observation indicates that it is a living thing that is multi
2 answers:
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Answer:
The x component of the x axis is:
The y component of the y axis is:
The magnitude is given by:
The direction is given by:
See the graphical magnitude and direction below.
Explanation:
The x component of the x axis is:
The y component of the y axis is:
The magnitude is given by:
The direction is given by:
Complete Question:
A 10 kg block is pulled across a horizontal surface by a rope that is oriented at 60° relative to the horizontal surface.
The tension in the rope is constant and equal to 40 N as the block is pulled. What is the instantaneous power (in W) supplied by the tension in the rope if the block when the block is 5 m away from its starting point? The coefficient of kinetic friction between the block and the floor is 0.2 and you may assume that the block starting at rest.
Answer:
Power = 54.07 W
Explanation:
Mass of the block = 10 kg
Angle made with the horizontal, θ = 60°
Distance covered, d = 5 m
Tension in the rope, T = 40 N
Coefficient of kinetic friction,
Let the Normal reaction = N
The weight of the block acting downwards = mg
The vertical resolution of the 40 N force,
Power,