For what value of .ϕ. is work done maximum?a)900b)00c)600d)450Cor...
Work done when a body moves at an angle to the direction of force is W=Fcosϕ×s. The value of Cos is maximum for 00. So, work done will be maximum for this angel.
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For what value of .ϕ. is work done maximum?a)900b)00c)600d)450Cor...
Work done is given by the formula W = F * d * cosθ, where W is the work done, F is the force applied, d is the displacement, and θ is the angle between the force and displacement vectors.
In this case, the force and displacement vectors are given by F = 100 N and d = 10 m. The angle θ is not given, so we need to find the value of θ that maximizes the work done.
To find the maximum value of cosθ, we need to find the minimum value of θ. The minimum value of θ occurs when cosθ is maximum, which is 1. Therefore, we can set θ = 0°.
Now, we can calculate the work done using the formula W = F * d * cosθ:
W = 100 N * 10 m * cos(0°)
W = 100 N * 10 m * 1
W = 1000 N * m
From the given options, the maximum value of work done is 1000 N * m, which corresponds to option B.
For what value of .ϕ. is work done maximum?a)900b)00c)600d)450Cor...
B