Answer:
Explanation:
The system is made up of three body system which are the boulder, earth and the moon also the sum of potential ad kinetic energies are assumed to be the same also note that the boulder was launched from the moon at an initial velocity
A ) Minimum speed of the boulder for it to reach the earth = 2.3 km/s
B) ignoring air resistance the impact speed on earth of a boulder launched at this minimum speed = 11 km/s
find attached the solution in details
Answer: Gemini
Explanation: lol I just born that that sign ig
Answer:
y = 60 mph
Explanation:
given,
average speed of Sarah driving from Orlando to Tampa = 30 mph
average speed of return = ?
whole trip average speed = 40 mph
now,
Let x be the distance from Orlando to Tampa
y be the speed of return
60 + 2 y = 3 y
y = 60 mph
hence, speed of the return is equal to 60 mph.
I thinks it’s 2...........