14.59390 kg hope it helps
Answer: 10.6 sec
Explanation:
Because I got it right on my quiz :D
also because you can use the impulse momentum formula, Ft=m(triangle)v
so basically u do 16m/s-2m/s=14m/s and thats your triangle v (change in velocity) then multiply 14 times the mass, which is 34. Thats 476, so now you have ft=476, and you know F, the force, so all you have to do is divide 476 by 45, and you get like 10.5777777 which rounds up to 10.6!
Answer: B
F = 2.4 N
Explanation: Given that
Magnetic field B = 0.60 T
Current I = 5 A
Length L = 0.8 m
The force on an individual charge moving at the drift velocity Vd is given by F = qVdB sin θ.
Since current = charge/time
I = q/t
q = It
Also, recall that V = L/t. Therefore
F = I × t × L/t × B × sinØ
F = ILBsin θ
Since the wire is at right angles to the magnetic field
Sin θ = sin 90 = 1 then,
F = 5 × 0.8 × 0.6 = 2.4N
The force on the wire is 2.4 N
