Experimental Results Report

Experimental Results Report

Gravitational Potential Energy

ID No : Name : ____________________ Date : _______________________

1. Measurements and calculation
The mass of the 1^st object m₁= _____ kg, The mass of the 2^nd object m₂= _____ kg
The radius of the 1^st object R₁= _____ m, The radius of the 2^nd object R₂= _____ m
Initial distance between two objects r₁=R₁+R₂=_______m

	Final distance between two objects r2, m	Work done (measured) W, J		Work done (calculated) W0, J			Gravitational force (measured) F, N		Gravitational force (calculated) F0, N
1
2
3
4
5
			Average					Average

Universal gravity constant G = 6.67x10^-11 N·m²/kg²

2. Results and discussion

3. Questions

A 2.30x10³ kg spacecraft flies to the Mars from the Earth. Imagine that in the Universe there is nothing except the Earth and the Mars. Find the distance measured from the Earth, when net gravitational force acting on the spacecraft is zero. The mass of the Mars is 0.107 times the mass of the Earth, and the distance between the Earth and Mars is 191x10⁶ km.

r₁ r₂

M _earth

0.107xM _earth

F₁ F₂

M _spacecraft

R

Given	Formula	Solution
M spacecraft = 2.30 x 10^3 kg m1 = M earth m2 = 0.107 x M earth R= 191x10­^6 km r2= 191x10^6 km – r2 G = 6.67x10^-11 N·m^2/kg^2	For F net to be zero, F1 must be equal to F2 F1 = F2
When F net will be equal to zero?