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An arrow is shot at an angle such that it's horizontal velocity is 40 m/s and it's vertical velocity is 20 m/s. Find the horizontal distance the arrow will travel before hitting the ground.
A car traveling on a flat (unbanked), circular track accelerates uniformly from rest with a tangential acceleration of 2.20 m/s2. The car makes it one quarter of the way around the circle before it skids off the track. From these data, determine the ..
Two plane mirrors stand facing each other, 3.23 m apart, and a woman stands between them. The woman faces one of the mirrors from a distance of 1.30 m and holds her left arm out to the side of her body with the back of her hand facing the closer m..
a 2.00m by 3.00m plate of aluminum has a mass of 324kg. What is the thickness of the plate
A 64-kg skier is going down a slope oriented 36° above the horizontal. Determine the pressure that each ski exerts on the snow
An antitank weapon fires a 4kg rocket which acquires a speed of 50.0 m/s after travelling 90 cm down a launching tube. Assume the rocket was accelerated uniformly, what is the average force acted on it.
question1one end of a horizontal string of linear density 6.9times10-4 is attached to a small-amplitude mechanical 150-
The diameters of the main rotor and tail rotor of a single-engine helicopter are 7.55 m and 1.04 m, respectively. Calculate the speeds of the tips of both rotors
Assume the mass density of Earth from the center to r= R_cm (radius of the core mantle boundary) is d_cm and from R_cm until the surface r=R_e the density is d_e. Using these densities, determine the gravitational potential energy of the Earth
A ball thrown horizontally at 22.0 m/s from the roof of a building lands 36.0 m from the base of the building. How high is the building
Use the pivot as the reference point because then two of the four forces on the plank exert zero torque. Which two? Since the plank is at rest, Find the normal force acting at the pivot point
A military gun is mounted on a railroad car (m = 1419 kg) as shown in the figure below There is no frictional force on the car, Find the recoil velocity of the car
A fire helicopter carries a 649 kg bucket of water at the end of a 18.7 m long cable. Flying back from a fire at a constant speed of 44.2 m/s, Determine the force of air resistance on the bucket
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