a) State Newton's second law of motion and derive F. = ma from it.
b) Calculate the time needed for a net fore of 5N to change the velocity of 10kg mass by
2m/s
Answers
Answered by
0
Answer:
a) F=ma
b) t=4s
Explanation:
According to the newton's second law of motion
Force is directly proportional to the rate of change of momentum
So, F ∝ m(v-u)/t
where F = force
m= mass
v=final velocity
u= initial velocity
t= time
a= acceleration
F = k(m(v-u))/t { k= proportionality constant }
m(v-u)/t= ma
F=kma
Here, through experiment k=1
F=ma
∴Proved
F=ma
5N= 10 ( 2m/s )/t
5= 20/t
5t=20
t=4s
Similar questions
English,
2 months ago
English,
2 months ago
Computer Science,
5 months ago
Social Sciences,
5 months ago
Physics,
10 months ago
Physics,
10 months ago
Computer Science,
10 months ago