Answer:
a) J=
b) F =
c) The force is 2551.02 times bigger than the weight of the pollen grain.
Explanation:
a) we know that the impulse J is equal to:
J =
where M is the mass, is the final velocity and the initial velocity. So, replacing values, we get:
J =
J =
J=
b) We know that the force is equal to:
F = J/t
where J is the impulse and t the time. So, replacing values, we get:
F =
F =
c) The weight W of the pollen grain is calculated as:
W =
W =
So, if we compare the force and the weight of the pollen grain, we get:
it means that the force is 2551.02 times bigger than the weight of the pollen grain.
Answer: how to draw a circle
Explanation:
2 and or 4. 2 would be the most sensible option, however. because it would cut back on her personal carbon footprint
Answer:
10 m
Explanation:
Weight = 10 N
mg = 10
m = 10 / 10 = 1 kg
g = 10 m/s^2
Initial mechanical energy = 40 J
Final mechanical energy = 140 J
change in total energy = 140 J – 40 J = 100 J
At the maximum vertical height, the velocity = 0 m/s
So,it has only potential energy at maximum height
P = m x g x h
100 = 1 x 10 x h
h = 10 m