First find the direction velocity
Vo =
tan θ = vy/vx = 10/30 = 1/3
so, sin θ = 1/√10 = √10/10
and time to reach further point is same with how long the ball in the air
Sorry for bad english (from Indonesian)
Answer:
<h2>1. Find the dot product of the vectors.</h2>
<h2>2. Divide the dot product with the magnitude of the first vector.</h2><h2 /><h2>3. Divide the resultant with the magnitude of the second vector.</h2>
Answer:
Explanation:
Given
Person on earth can jump to a height
initial velocity is u
using
where v=final velocity
u=initial velocity
a=acceleration
s=displacement
final velocity is zero
On moon surface acceleration due to gravity is \frac{1}{6}[/tex] th of earth gravity
so height attained is given by
divide 1 and 2 we get
a) Speed of the Moon: 1025 m/s
The speed of the moon is equal to the ratio between the circumference of its orbit and the orbital period:
where
is the radius of the orbit of the Moon
is the orbital period
Substituting into the formula, we find
b) Centripetal force:
The centripetal force acting on the Moon is given by:
where
is the mass of the Moon
is its orbital speed
is the radius of the orbit
Substituting into the formula, we find
c) Gravitational force
The only relevant force that acts on the Moon, and that keeps the Moon in circular motion around the Earth, is the gravitational force exerted by the Earth on the Moon. In fact, this force "pulls" the Moon towards the Earth, so towards the centre of the orbit of the Moon, therefore it acts as source of centripetal force for the Moon.