phy1

A force Fis said to be conservative if the work done is independent of the path followed by the force acting on a particle as it moves from A to B. depends only on the initial and final positions of the particle is independent of its velocity or acceleration. all of the above does not depend on the initial and final positions of the particle.

An object is moving at constant speed. Which statement MUST be true? And why? A. The acceleration of the object must be zero B. The direction of the object is not changing C. The velocity of the object is constant D. All of the above E. None of the above

You pull on a string with a horizontal force of magnitude F = 59 N that is attached to a block of mass m = 6.3 kg, then to the axle of a solid cylinder of mass mc = 5.9 kg and radius r = 0.4 m, then to a spring of spring constant k = 145 N/m. This is all done on an inclined plane where there is friction (μ = 0.63 and μ = 0.36), and the incline angle is 0 = 28 degrees. Everything starts at rest, and the spring is unstretched. The block slides down the plane, the cylinder rolls down the plane (without slipping), and the spring stretches. k bllllllll b 0 Fyb

question a,b,c ty For any vector quantity, be sure to always include the magnitude and direction(teacher asked)

Q1. Two asteroids collide and stick together. The first asteroid has mass of 15×10³kg and is initially moving at 770 m/s. The second asteroid has mass of 20×10³kg and is moving at 1020 m/s. Their initial velocities made an angle of 20° with respect to each other. What is the final speed and direction with respect to the velocity of the first asteroid?

The horizontal component of Force F1 (unit is in N), H1= The vertical component of Force F1 (unit is in N), V1 = The horizontal component of Force F2 (unit is in N), H2= The vertical component of Force F2 (unit is in N), V2 = The horizontal component of Force F3 (unit is in N), H3= The vertical component of Force F3 (unit is in N), V3 = The vertical component of Force F4 (unit is in N), V4 = The horizontal component of Force F5 (unit is in N), H5= The vertical component of Force F5 (unit is in N), V5 = The horizontal component of Force F6 (unit is in N), H6= The vertical component of Force F6 (unit is in N), V6 = The sum of horizontal force component for the given system (unit is in N),begin inline style sum for H of end style = The sum of vertical force component for the given system (unit is in N),begin inline style sum for V of end style = The resultant of the given force system is (unit in N), R = The direction of Resultant Force is = Short Answer question

When the mass of a body increases, the momentum will decrease     True False

What is the maximum distance up the ramp attained by the block?       smaxsmax =         What is the maximum velocity attained by the block as it moves up the ramp?       vmaxvmax =

A particle is undergoing motion in the yz-plane means eliminate all terms involving j and k.. O True O False

A block is pulled at constant speed along a rough level surface by a ropc that makes an angle of 30° with respect to the horizontal. The applied force along the rope is P . The force of kinetic friction between the block and the surface is 20 N. 30° Which one of the following expressions gives the magnitude of the force P in SI units? O 20(sin 30°) O 10(cos 30) O tan 30 O 20/(cos 30) O 30/(sin 30°) O O O O O

3. A 20 lb block is moving along a smooth surface. If the normal force on the block at A is 10 lb, the magnitude of velocity is A a. 7.6 ft/s b. 9.6 ft/s c. 10.6 ft/s d. 12.6 ft/s PA=7 ft

a.) What is the angle, measured relative to the positive x-axis, of the load's acceleration? (The correct answer is: -10.219 degrees) Just need the steps to get there  b.) Three horses pull and guide a 132 kg payload down a river, exerting the forces shown in the figure, with F1 = 29 N, F2 = 38 N, F3 = 58 N, θ1 = 30°, and θ2 = 60°. What is the magnitude of the payload's acceleration? (The correct answer is: 0.7861 m/s^2)Just need the correct steps to get there