Question

SOMEONE PLEASE HELP

You push against a steamer trunk with a force of 750 N at an angle of 25 degrees with the horizontal . The trunk is on a flat floor and the coefficient of static friction between the trunk and floor is 0.77. What is the most massive trunk you will be able to move?

67 kg
58 kg
90 kg
80 kg

Answer 1

\[F = \mu _{s}N\]
u is the coeff. of friction
N is the normal force

Take the force vector you are given and calculate the component that acts horizontally. That is your F.

Then understand that N is just going to be equal to the weight of the trunk. You know weight is defined as m*g. 'g' is known, so you can solve for 'm'.

Answer 2

I'm still confused @Pompeii00