A skydiver weighing 178 lbf (including equipment) falls vertically downward from an altitude of 5000 ft and opens the parachute af 17s of free fall. Assume that the force of air resistance, which is directed opposite to the velocity, is 0.76 |v| when the parachute is closed and 12 |v| when the parachute is open, where the velocity v is measured in ft/s. Use g = 32 ft/s². Round your answers to two decimal places. (a) Find the speed of the skydiver when the parachute opens. v(17) = i ft/s (b) Find the distance fallen before the parachute opens. x(17) = i ft (c) What is the limiting velocity v₁ after the parachute opens? VL = i ft/s

A force ₁ of magnitude 4.90 units acts on an object at the origin in a direction 8 = 34.0° above the positive x-axis. (See the figure below.) A second force 2 of magnitude 5.00 units acts on the object in the direction of the positive y-axis. Find graphically the magnitude and direction of the resultant force ₁ + 72. 1 (No Response) units magnitude direction (No Response) ° counterclockwise from the +x-axis 0

What is the magnitude of the force acting on a substance if the magnitude of the change in length is (4 cm) and the amount of the constant is (N 625)?

A snow-covered ski slope makes an angle of 0slone = 30.0° with the horizontal. When a ski jumper plummets onto the hill, a parcel of splashed snow is thrown up to a maximum displacement of 1.60 m at 0, = 18.0° from the vertical in the uphill snow direction as shown in the figure below. snow Oglope (a) Find the component of its maximum displacement parallel to the surface. m (b) Find the component of its maximum displacement perpendicular to the surface.

What mass of gasoline (in kg) can be contained in a fuel tank whose dimensions are 48 cm x 83 cm x 26 cm [round your final answer to zero decimal places]?  {ρgasoline = 737 kg/m3}