Bedirected in order to achieve the maximum acceleration

Reference no: EM13648004

A person is dragging a packing crate of mass 100 kg across a roughfloor where the kinetic coefficient of friction is .40. He exerts aforce F sufficient to give the crate a positive acceleration. At what angle above the horizontal should his pulling force bedirected in order to achieve the maximum acceleration?

Reference no: EM13648004

Questions Cloud

Frictionless gas-filled cylinder is fitted-movable piston : A frictionless gas-filled cylinder is fitted with a movable piston.The block resting on the top of the piston determines the constantpressure that the gas has. The height h is 0.120 mwhen the temperature is 273 K and increases as the temperature i..

Find the total change in the planets velocity : Over a time interval of 2.16 years, the velocity of a planet orbiting a distant star reverses direction, changeing from +20.9 km/s to 18.5 km/s. Find (a) the total change in the planet's velocity (in m/s) and (b) its average acceleration(in m/s^2) du..

Three-blade rotor systems-determine the translational speed : A helicopter, has 2 three-blade rotor systems, each turning theopposite direction. Each blade has a diameter of approximately 41ft. the blades can spin at angular speeds of up to 225 rpm.

Special electronic sensor is embedded in seat of a car : A special electronic sensor is embedded in the seat of a car that takes riders around a circular loop-the-loop ride at an amusement park. The sensor measures the magnitude of the normal force that the seat exerts on a rider.

Bedirected in order to achieve the maximum acceleration : A person is dragging a packing crate of mass 100 kg across a roughfloor where the kinetic coefficient of friction is .40. He exerts aforce F sufficient to give the crate a positive acceleration. A

Magnetic flux through one loop of wire is reduced : The magnetic flux through one loop of wire is reduced from 0.35 Wbto 0.15 Wb in 0.2 sec. The average induced current in the coil is10 A. Can you determine the area of the loop from the data given?Explain. Find the resistance of the wire.

What is the maximum input current to this transformer : The primary coil of an ideal transformer is connected to a 120-Vsource and draws 1.0A. The secondary coil has 800 turns andsupplies an output current of 10A to run an electrical device.

Person pulls horizontally on it with a force : A crate with a weight of 50N rests on a horizontal surface. A person pulls horizontally on it with a force of 10N and it does not move. To start it moving, a second person pulls vertically upward on the crate. If the coefficient of static friction is..

What is resonance frequency if hecapacitance c is doubled : The resonance frequency of an RLC circuit is1100 Hz. What is the resonance frequency if theinductance L is doubled? What is the resonance frequency if hecapacitance C is doubled?

User Account

All Pages