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Below is the solution:
W done by Normal = 0. (make the incline flat, Normal force goes directly up: no work done)
<span>W done by gravity = w*displacement = (11kg*9.8) * 7.5sin(35) = -463J </span>
<span>W done by friction is the opposite of the work done by weight because the object is not moving. Therefore W done by friction = 463J</span>
Answer: C. 1.64 x 10-3 m/s2
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Answer:
Explanation:
Given that,
Current flowing in the wire, I = 40 A (+x direction)
Speed of the electron, 
(+y direction)
Distance from the wire, r = 0.1 m
Let F is the electric force on the electron. It is given by :
Here, 
Here, 
So, the force on the electron at this instant is 
. Hence, this is the required solution.
Answer:
B
Explanation:
when a velocity is uniform it means it may not variable over time
and it mean the particles acceleration is 0
