Net work done with it and kinetic frictional force is zero

Reference no: EM13668609

1) A 0.075 kg arrow is fired horizontally. The bow string exerts an average force of 65N on the arrow over a distance of 0.90m with what speed does the arrow leave the bow?

2) A 100kg crate is being pulled across a horizontal floor with a force P that makes an angle of 30 degrees above the horizontal. The coefficient of kinetic friction is 0.200. What must be the magnitude of P so that the net work done with it and kinetic frictional force is zero?

Reference no: EM13668609

Questions Cloud

Obtain the radial acceleration of the vehicle at this time : A race vehicle accelerates uniformly as it leaves the pit area, going from rest to 330 km/h in a semicircular arc with a radius of 200 meter. Obtain the radial acceleration of the vehicle at this time

Estimate average distance of capillaries below skin surface : Assume 150W of heat flows by conduction from the blood capillaries beneath the skin to the body's surface area of 1.5m2. If the temperature dissimilarity is 0.5 degrees C, estimate the average distance of capillaries below the skin surface.

Determine is the total energy positive or negative : In the model of hydrogen atom created by Niels Bohr, the electron moves around the lone proton in the nucleus at a speed of 2.2 x 106 m/s in a circle with radius 5.3 x 10-11 meter. Determine is the total energy positive or negative

Obtain what is the kinetic energy of the electron : In the model of hydrogen atom created by Niels Bohr, the electron moves around the lone proton in the nucleus at a speed of 2.2 x106 m/s in a circle with radius 5.3 x 10-11meter. Obtain what is the kinetic energy of the electron

Net work done with it and kinetic frictional force is zero : A 0.075 kg arrow is fired horizontally. The bow string exerts an average force of 65N on the arrow over a distance of 0.90m with what speed does the arrow leave the bow? A 100kg crate is being pulled across a horizontal floor with a force P that make..

Find the time taken for the ball to reach the ground : A ball is thrown forward horizontally from the top of a cliff with a velocity of 10 m/s. the height of the cliff is 45 meter. Find the time taken for the ball to reach the ground

Determine which car exerts a larger force on the other : Car C of mass 3.0 x 103 kilogram is traveling at 50 m/s. It approaches car D of mass 2.0 x 103 kilogram going 30 m/s in the similar direction and strikes it in the rear. determine which car exerts a larger force on the other

Shot among the plates from the left edge of the lower plate : A uniform, upward-pointing electric field E of magnitude4.00×103N/C has been set up among two horizontal plates with charging the lower plate positively and the upper plate negatively. The plates have length L = 4 cm and separation d = 2.00 cm. Elect..

Determine at what angle should the roadway on a curve : Determine at what angle should the roadway on a curve with a radius 50 meter be banked to allow cars to negotiate the curve at 12 m/s even if the road is icy and frictional force is zero

User Account

All Pages