Answer :
The force required to produce an acceleration of 0.805 m/s2 upwards against a 175-N frictional force is: 342.5 N..
To find the force supplied by the elevator's cable, we use the equation
F=ma,
where F is the force,
m is the mass, and
a is the acceleration.
The elevator is moving upwards with an acceleration of 0.805 m/s^2, and is subject to a frictional force of 175 N. Therefore, the total force required is given by F = (175 + m) * 0.805.
Using Newton's Second Law, which states that force equals mass times acceleration, we can set this expression equal to the force supplied by the cable, F = 342.5 N. Solving for mass, we get m = 425 N. Therefore, the force supplied by the elevator's cable is 342.5 N.
To know more about "Newton's Second Law" refer here:
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