When a rope is wrapped around a wheel (or pulley) and pulled, the lever arm is the ________ Blank 1 of the wheel and the angle b
1 answer:
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Answer:
0.10839 m
Explanation:
= Atmospheric pressure = 1 atm = 101325 Pa
= Total pressure at bottom of mecury = 1.2 atm
g = Acceleration due to gravity = 9.81 m/s²
h = d = Depth of mercury
= Density of mercury =
= Density of water =
Pressure at the bottom is of the cylinder is given by
Pressure at the bottom of mercury is
The depth of the mercury is 0.10839 m
Answer:
towards right
towards left
Explanation:
= Mass of skater = 56 kg
= Mass of ball = 5 kg
v = Final velocity of ball = 7 m/s
u = Initial velocity of ball = 0
s = Distance the ball moved in the hand of the skater = 1 m
Moving left is considered and moving right is considered positive.
From kinematic equations of motion we have
So, the ball will move towards right with a magnitude of acceleration .
The force on the ball will be
The force on the ball is
The reaction force on the skater will be equal to the force on the ball but will have opposite direction.
So, the skater will move towards left with a magnitude of acceleration