ESAS - Physics Mechanics

Three capacitors C1 = 2 μF , C2 = 3 μF and C3 = 5 μF are connected as C1 in series to C2 and C1 and C2 are in parallel to C3. What is the equivalent capacitance of this arrangement in μF?

A home experimenter wants to make a one ohm resistor from 1 mm diameter carbon rod from a mechanical pencil. What length of the rod does the experimenter needs if the resistivity of carbon is 3.5 x 10^-5 ohmmeter?

A body was dropped from a height h₀ above the floor. If the height is made 4 times h₀ the velocity of the ball as it hits the floor will be,

A ball is drooped from the top of a building which is 50m tall. How long in seconds will it takes the ball to reach the ground?

A ball is thrown at a 30° angle above the horizontal with a speed of 10m/s. After 0.5s the horizontal component of the velocity will be,

A stone is thrown from the top of a 200m building with an initial velocity of 150m/s at an angle of 30° with the horizontal line. Neglecting the air resistance, determine the maximum height in meters above the ground reached by the stone.

An automobile traveling with a speed of 60kph can brake to stop within 20m. If the car is going twice as fast, the stopping distance will be,

An automobile wheel is spinning at the rate of 180 rpm. If it experienced an acceleration of 10 rad/s², what is the angular velocity of the wheel after 5 sec?

A speed boat traveling at 30m/s is 100m from a buoy and decelerates at 3.5 m/s². What time it will reach the buoy?

A 600 pound box rest on a slope. If the coefficient of friction is 0.70, find the maximum angle in degrees at which the box will remain at rest.

An object is placed 3 feet from the center of a horizontally rotating platform. The coefficient of friction is 0.30. The object will begin to slide off when the platform speed is nearest to,

The maximum speed in m/s with which a car driver must traverse a flat curve of radius 150m and coefficient of friction of 0.6 to avoid skidding is,

If a horizontal force of 100 N was needed to keep an object weighing 270 N sliding at constant speed over a horizontal surface, then what was the coefficient of sliding friction?

A roller coaster slides down a frictionless ramp. What is the minimum height of the ramp such that the roller coaster will maintain contact at the top of the loop the loop with radius r?

The leaning tower of Pisa is 54.5 m tall. Supposedly, Galileo investigated the behavior of falling objects by dropping them from the top of this tower and timing their descent. How long in seconds would it take an object to fall 54.5 m if air effects are negligible?