Answer:
a) J=[tex]7.5*10^{-10}[/tex]
b) F = [tex]2.5*10^{-6}N[/tex]
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 =[tex]MV_f-MV_i[/tex]
where M is the mass, [tex]V_f[/tex] is the final velocity and [tex]V_i[/tex] the initial velocity. So, replacing values, we get:
J =[tex](10^{-10})(7.5m/s)-(10^{-10}(0)[/tex]
J =[tex](10^{-10})(7.5m/s)[/tex]
J=[tex]7.5*10^{-10}[/tex]
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 = [tex]\frac{7.5*10^{-10}}{0.0003}[/tex]
F = [tex]2.5*10^{-6}N[/tex]
c) The weight W of the pollen grain is calculated as:
W = [tex]10^{-10}*9.8[/tex]
W = [tex]9.8*10^{-10}N[/tex]
So, if we compare the force and the weight of the pollen grain, we get:
[tex]\frac{2.5*10^{-6} }{9.8*10^{-10} } =2551.02[/tex]
it means that the force is 2551.02 times bigger than the weight of the pollen grain.
The Impulse ,Force and Weight is mathematically given as
a)I=7.5e{-10}
b)F=2.5e^{-6}N
c)Wg=9.8e{-10}N
Generally the equation for the Impulse is mathematically given as
I=MVf-MVi
Therefore
I =(10^{-10})(7.5m/s)
I=7.5e{-10}
b)
Generally the equation for the Force is mathematically given as
F=I/t
F=7.5e{-10}/0.0003
F=2.5e^{-6}N
c)
The weight of the pollen grain will be
Wg=M*g
Wg=10^{-10}*9.8
Wg=9.8e{-10}N
For more information on Weight
https://brainly.com/question/11408596
