A small object with mass 4.30 kg moves counterclockwise with constant speed 1.35 rad/s in a circle of radius 2.70 m centered at the origin. It starts at the
point with position vector 2.709 m. Then it undergoes an angular displacement of 9.50 rad. What direction is it moving in degrees? What is its acceleration in vector form? What is the total force exerted on the object?

Iwill give 30 points to whoever answers ! what is the formula for actual mechanical advantage and ideal mechanical advantage?

Ways that industry and agriculture use physical properties to separate substances

It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .