Answer: It seems i am made for this since, i LOVE eclipses, so basically it's when the moon goes in front of the moon, and is kinda hidden, making an eclipse
Time = (distance) / (speed)
Time = (0.25 km) / (65 km/hr)
<em>Time = 0.00385 hour</em>
(That's 13.85 seconds.)
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<u>Better way:</u>
Distance = 0.25 km
Distance = 250 meters
Speed = (65 km/hr) x (1000 m/km) x (1 hr/3600 sec)
Speed = 18.06 m/sec
Time = (250 m) / (18.06 m/s)
<em>Time = 13.85 seconds </em>
Answer:
A
Explanation:
for every action there is an equal and opposite reaction
The skateboard that has the greatest impulse is Skateboard C (Impulse = 25.74 Ns)
From the question,
We are to determine which skateboard has the greatest impulse. To do this, we will calculate the impulse of each skate board.
Impulse can be calculated by using the formula
I = Ft
Where I is the impulse
F is the force
and t is the time
Force = 33 N
Time = 0. 12 s
∴ Impulse = 33 × 0.12
Impulse = 3.96 Ns
Force = 33 N
Time = 0. 57 s
∴ Impulse = 33 × 0.57
Impulse = 18.81 Ns
Force = 33 N
Time = 0. 78 s
∴ Impulse = 33 × 0.78
Impulse = 25.74 Ns
Hence, the skateboard that has the greatest impulse is Skateboard C (Impulse = 25.74 Ns)
Learn more here: brainly.com/question/21840495
225 because f=ma 25x9 is 225
