Answers:
1) Time it takes to travel to the moon
Velocity is defined as:
Where:
is the average distance from Earth to the Moon
is the velocity of the spacecraft
the time
Isolating :
This is the time in hours
2) Time in days
A day is equivalent to 24 hours:
Hence:
This is the time in days
3) Time in months
A month is equivalent to 30.4 days:
Hence:
This is the time in months
Answer:
Final speed is 900.06 m/s at
Solution:
As per the question:
Mass of the first asteroid, m =
Mass of the second asteroid, m' =
Initial velocity of the first asteroid, v = 770 m/s
Initial velocity of the second asteroid, v' = 1020 m/s
Angle between the two initial velocities,
Now,
Since, the velocities and hence momentum are vector quantities, then by the triangle law of vector addition of 2 vectors A and B, the resultant is given by:
Thus applying vector addition and momentum conservation, the final velocity is given by:
(1)
Now,
Now, substituting the suitable values in eqn (1), we get:
Now, the direction for the two vectors is given by: