As we know that centripetal force =mv^2/r
given data is
m = mass
v = speed
r = radius
putting values we get
= 85 x 15^2 / 20
= 956.25 N
option d is correct
The Answer is D
A is a mixture
B is a gaseous mixture
C is relating to a mixture
D describes a solution ((which basically is a combination of 2 or more elements with identical composition throughout))
Answer:
Because the Earth has it's own gravity that keeps us put, and we also have the moon.
Explanation: