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Answer:
t = 2.2 [days] and is there is a round trip, it will be double time t = 4.4 [days]
Explanation:
First, we need to arrange the problem to work in the same unit system (SI).
We need to convert the 1800 [miles] to meters, therefore:
Now using the following equation of kinematics, for the avarage velocity we have:
therefore:
Now we can convert from seconds into days.
Now if the truck has the need to come back, the team will spend double time.
t= 4.4 [days]
Answer:
3.65 x mass
Explanation:
Given parameters:
Time = 20s
Initial velocity = 0m/s
Final velocity = 73m/s
Unknown:
Force the ball experience = ?
Solution:
To solve this problem, we apply the equation from newton's second law of motion:
F = m
m is the mass
v is the final velocity
u is the initial velocity
t is the time taken
So;
F = m ( ) = 3.65 x mass