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Q. A roller-coaster car may be represented by a block of mass 50.0 kg. The car is released from rest at a height h = 54m above the ground and slides all along a frictionless track. The car encounters a loop of radius R = 18 m at ground level. As you will learn in the course of this problem, the initial height 54.00 m is great enough so that the car never loses contact with the track.
Q. A 1.00 kg toy raft floats on water with 68 percent of its volume submerged. A lead block is placed on the raft and the raft is then fully submerged with lead block just above the surface of the water. Find out the mass of the lead block.
Find the slit width. compute the coefficient of kinetic friction between the slide and the child.
Write down the original position of the system
what is the magnitude of its velocity after the collision. A soccer player applies a force of 60.5 N to a soccer ball while kicking it. If the ball has a mass of 0.42kg, what is the acceleration of the soccer ball.
A swimmer heads directly across a river, swimming at 1.60 m/s relative to the water. She arrives at a point 58.0 m downstream from the point directly across river, 63 m wide. What is the speed of the river current.
Consider a closed triangular box resting within a horizontal electric field of magnitude E = 7.40x10^4 N/C, below.
An iron tower in is 399 meters tall on a cold day (T = -6.7 degrees Celsius). What is its height of the tower on a hot day while the temperature is 31.5 degrees Celsius.
A 69N box of clothes is pulled 8.9 m up a 30° ramp by a force of 100 N that points along the ramp. If the coefficient of kinetic friction between the box and ramp is 0.22, compute the change in the box's kinetic energy.
A jetliner can fly 5.32 hours on a full load of fuel. Without any wind it flies at the speed of 220 m/s. The plane is to make a round-trip by heading due west for a certain distance, turning around, and then heading due east for the return trip.
Note the gravitational acceleration of equatorial sea level is g = 32.0088ft/s^2 and that its variation is 0.003ft/s^2/ 1000ft ascent. find the height in miles above its point for which g = 30.504 ft/s^2 and what is the weight of a 180lb man on top o..
What happens to support force on the workmens feet
What is the volume of the bubble when it reaches just below the surface of the lake, where temperature is 20°C.
A stone is shown at rest on ground. at. The vector shows the weight of the stone. Complete vector diagram showng another tha results in zero net force on the stone. b. What is the conventional name of the vector you have drawn.
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