The Department of Art and Art History is preparing an exhibit at the UNO Art Gallery. They have asked the engineering program to help, and you have volunteered. A large sculpture needs to be mounted to the wall, and the curator is unsure if a ladder can be used or if she must rent a scissor lift. The ladder that the department has is 3.0 m long and has a mass of 20 kg. When propped up against the wall such that the sculpture can be installed, the ladder makes an angle of 45° with respect to the floor. You have determined that the coefficient of static friction is s = 0.50 for the ladder-floor system. Assume the wall is frictionless. If you have a mass of 50 kg, and the sculpture has a mass of 10 kg, will the ladder be sufficient or will a scissor lift be needed to be rented?

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Let a ladder be inclined to a wall on the right side The ladder is placed such that the angle betwee... View the full answer