A man is pushing a 77kg sofa across an inclined floor (angle of inclination is 18 degrees). If the coefficient of kinetic friction between the sofa feet and the floor is 0.37, what is the magnitude of the sofa's acceleration if the man's push (parallel to the floor) shown in the figure is - 925N?

Rear Raised Standard 0.6 m 0.4 m 1.3 m 1.6 m 1.3 m 1.6 m Car image from YouTube.com Newton's Laws (Rigid Bodies): In an attempt to make her car accelerate faster, a drag racer has raised the rear of her car to increase the centre of gravity by 0.2 m. The shift in the horizontal location of the centre of gravity is negligible. The car has a mass of 1600 kg and the coefficient of friction is 0.3. The car is rear wheel drive. The front wheels roll freely. Neglect the mass of the wheels. Neglect the suspension deflection. Assume the front wheels stay on the ground. What is the change in maximum acceleration as a percentage taking the unraised car as the reference?

Think about how this relates to (c). Ihe center of the circle? 2. A 1500 kg car is driving on a concrete highway, on a sunny day. The road makes a sharp turn, with a radius of curvature of 50. meters. What is the maximum speed at which the car can make the turn without sliding sideways?? The centripetal force is provided by the friction force that the concrete road exerts on the rubber tires. Calculate the friction force, then plug that into F.-mv/r, as F M 9 EESE

The construction company outside is raising a 200 foot steel beam using a crane. At the start, it's laying flat on the ground. The bottom of the beam will always remain in the same exact spot on the ground, but the top of the beam will be pushed up until it's standing straight up. During this process, there is an angle between the beam and the ground that is increasing at a rate of .8 radians per minute. When the height of the beam is 100 feet (where height refers to the distance between the top of the beam and the ground), at what rate is this height increasing?