SOLVE STEP BY STEP IN DIGITAL FORMAT DON'T USE AI | DON'T USE AI | DON'T USE AI | DON'T USE AI | An 80 kg car ascends a road that has a slope of 15° in 3.5 s. What average power should you use? 100 m

Steven carefully places a m = 1.45 kg wooden block on a frictionless ramp so that the block begins to slide down the ramp from rest. The ramp makes an angle of 0 = 53.3° up from the horizontal. Which forces do nonzero work on the block as it slides down the ramp? ☐ gravity How much total work Wnet has been done on the block after it slides down along the ramp a distance of 1.87 m? Nancy measures the speed of the wooden block after it has gone the 1.87 m down the ramp. Predict what speed u she should measure. Now, Steven again places the wooden block back at the top of the ramp, but this time he jokingly gives the block a big push before it slides down the ramp. If the block's initial speed is 2.00 m/s and the block again slides down the ramp 1.87 m, what should Nancy measure for the speed v of the block this time? ☐ spring friction normal J Wnet = v = m/s v = m/s

Suppose a force of 30 N is required to stretch a spring from its natural length of 12 cm to a length of 15 cm. How much work is required to stretch the spring from 12 cm to 20cm? (W = F(x)dx) %3D

2. An ocean diver swims upwards against the drag force exerted by the water. This force varies in magnitude by depth (d) and is given by F(d)=√d, where y=100 N/m ¹/2. If the diver ascends from a depth of d=10m to the surface (d=0), what is the work done by this drag force? Why is this work negative?

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A 2.5 kg bowling ball is tied to a 1m long string attached to the ceiling. The ceiling is 5 m above the floor. What is its change in potential energy relative to the floor? 31.3 J O 122.5 J 98.0 J O 24.5 J

A 1200-kg sports car is advertised to accelerate from 0-100 km/h (27.78 m/s) in 3.00 s. What is the power output of the car in hp? 1 hp = 746 W 01 207 hp 325 hp 200 hp 175 hp

A 1.9 kg book is lying on a 0.75mm high table. You pick it up and place it on a bookshelf 2.1 mm above the floor. During this process, how much work does gravity do on the book? During this process, how much work does your hand do on the book?   Express your answer with the appropriate units.

Reference: Horsepower Lab. John, of mass 82.4 kg, can do work for about 2.0 minutes at the rate of 1.0 hp. How long will it take him to climb three flights of stairs, a vertical height of 12.0 m?   1hp = 1 horsepower.

M PAMP7 ** F20 A student pulls a crate of mass M up the inclined surface the distance d. The surface rises 0 degrees above the horizontal, as shown in the figure How much work does gravity do on the crate? Please use the following values: M = 11.9 kg, 0 = 26.9°, d = 5.88 m, g 9.80 m/s (PAMP716F20) a) 0612 J b) О310J c) O-612 J d) 0 686 J e) O-310 J