d = 1/2 a t^2
10.0 * 2 = a * 2.65^2
calculate the gravitational acceleration (a)
... f = m a
... f / m = a
f = M * m * G / r^2
... f / m = M * G / r^2
... a = M * G / r^2
M is the planet's mass
G is the universal gravitation constant
r is the planets radius (in meters)
Please help with the following question:
You are on a planet whose radius is known to be about 4500 km. You then perform the following experiment: You drop a rock from a height of 10.0 m and measure the time of its fall to be 2.65 s. What is the mass of the planet?
what equations can I use to solve this question and how can the time it took for the rock to fall be incorporated into this?
1 answer