Answer:
0.15N
Step-by-step explanation:
Given data
Mass= 0.0056kg
distance= 4.85m
Velocity= 11.4m/s
The expression for the force is
F= mv^2/r
substitute
F= 0.0056* 11.4^2/4.85
F= 0.0056*129.96/4.85
F= 0.727776/4.85
F= 0.15N
Hence the force is 0.15N
30
1/3 of 60 is 20
40 would be left
1/4 of 40 is 10 so 30 would be left