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A dog running in an open field has components of velocity vx = 2.4m/s and vy = -2.5m/s at time t1 = 11.3s . For the time interval from t1 = 11.3s to t2 = 18.0s , the average acceleration of the dog has magnitude 0.55m/s2 and direction 26.0? measured from the +x?axis toward the +y?axis.
At time t2 = 18.0s , what are the x- and y-components of the dog's velocity?
What is the magnitude of the dog's velocity?
What is the direction of the dog's velocity (measured counterclockwise from positive x?axis)?
Find the magnitude of the maximum force applied horizontally to upper block (block 1) that will cause the two blocks to slide together.
And if the plane could fly without this pilot, how much force would the plane require to maintain the equal acceleration?
A 100kg crate is being pushed across a horizontal floor by a force P that makes an angle of 30 below the horizontal. The coefficient of kinetic friction is 0.20. What must be the magnitude of P, so that the net work completed by it and the kinetic..
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A ball is attached to one end of a wire, the other end being fastened to the ceiling. The wire is held horizontal, Find the velocity (magnitude and direction) of the ball just before the collision
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Chip rolls a ball down an incline (without slipping) at the same time Emmanuel slides a frictionless block with the same mass down the incline
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A mass spectrometer applies a voltage of 2 kV to accelerate a singly charged positive ion. A magnetic field of B = 0.400 T then bends the ion into a circular path of radius 0.305m. What is the mass of the ion.
A thin uniform rod (length = 2.01 m, mass = 3.11 kg) is pivoted about a horizontal frictionless pin through one of its ends. What is the angular acceleration of the rod at the instant it is released
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