The force of Earth's gravity on you is greatest when you stand as
close as you can to the center of the Earth (but not underground).
From the choices listed, that would be (c).
Answer:
Explanation:
Given
mass of ball is m
initial velocity of ball is
Final velocity of ball is
Impulse is the change in momentum of an object when an external force is applied for a given interval of time.
Initial momentum
Final momentum
Centripetal acceleration is the force acting on the body who's moving in a circular motion. It is still a force, which according to Newton's Second Law of Motion,
F = ma
F = (70 kg)(2)(9.81 m/s²)
F = 1373.4 N
<em>Thus, the answer is B.</em>
Answer:
1.28 m
Explanation:
Generally, pressure of fluid is given by
where g is acceleration due to gravity, h is the height and is the density
Considering that the pressure for mercury is same as for blood only that the height and density of fluid are different then
Since g is constant, then
Making the subject of the formula then
Where subscripts m and b denote mercury and blood respectively
Assuming density of blood is 1060 Kg/m3, density of mercury as 13600 Kg/m3 and substituting height of mercury for 0.1 m then
C same speed
it is the same speed