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3. A stone is shot with speed of vo and in horizontal direction. At any time...
1.) You whirl a stone in a horizontal circle in such a way that the stone...
1.) You whirl a stone in a horizontal circle in such a way that the stone is in uniform circular motion. Which of the following is true for this situation? (Select all that apply.) The change in direction of the stone's motion is due to the centripetal force acting on the stone. The direction of the stone's velocity changes as it moves around the circle. The stone is moving with constant velocity. The stone's speed is constant. The magnitude of...
fired at an angle of 45° with the horizontal at an initial speed of 130 feet...
fired at an angle of 45° with the horizontal at an initial speed of 130 feet per second. What are the components when the projectile is at its maximum height? Use the equations below to find the tangential and normal components of acceleration for a projectile h r(e)= (vot cos(0)i + vot sin(e)- 162)i + v(t) Vo cos(6e)i + (vo sin(0) -32t)j a(t) -32j (Vo cos(0))i + (vo sin(0) - 32t)j vo2 Vw(cos) T(t) + (vo sin(0) 32t)2 (Vo sin(e)-...
3. A stone is shot up vertically in the air from the ground with an initial...
3. A stone is shot up vertically in the air from the ground with an initial speed of 60 m/s. i) Calculate the height from the ground and the speed ofthe stone 7 seconds after It was shot. (ii) 7 seconds after the hot, is the stone moving upward or downward? Justify your (ii) Calculate the maximam height from the ground the stone will reach. 2.You ary at the top ofa 90 m ผ wer, you tossihp a' stone, Calculate...
1. A ball of mass m is thrown with speed vo at an angle 0 with...
1. A ball of mass m is thrown with speed vo at an angle 0 with respect to the horizontal. Let the drag force from the air take the form f Newton's second law, the r- and y-components of the acceleration of the ball are given by = mav where a is a constant and v is the speed of the ball. By du (t) = -av,(t), dt de,(t) ay(t)= -g-au,(t), dt where ug (t) and v,(t) are the x-...
An arrow is shot at an angle of θ=45∘ above the horizontal. The arrow hits a tree a horizontal distance D=220m away, at...
An arrow is shot at an angle of θ=45∘ above the horizontal. The arrow hits a tree a horizontal distance D=220m away, at the same height above the ground as it was shot. Use g=9.8m/s2 for the magnitude of the acceleration due to gravity. Part A Find ta, the time that the arrow spends in the air. Part B How long after the arrow was shot should the apple be dropped, in order for the arrow to pierce the apple...
1. Teresa Drops a Stone. (Allotted Time - 40 minutes) Teresa drops a stone from rest...
1. Teresa Drops a Stone. (Allotted Time - 40 minutes) Teresa drops a stone from rest from the top of an extremely tall building on a huge planet with essentially no atmosphere. You may assume that the stone experiences a constant gravitational acceleration as it falls to the planet’s surface, but the magnitude of this acceleration may not be equal to that on Earth. Let d1 be the distance the rock travels during the 1st second of its fall, let...
A car of mass M moves with an initial speed of vo on a straight horizontal...
A car of mass M moves with an initial speed of vo on a straight horizontal road. The caris brought to rest by braking in such a way that the speed of thecar is given as a function of time t by v = √(vo^2-(Rt/M)) A. Develop an equation that expresses the time rate of changeof kinetic energy. B. Determine the time T it takes to bring the car to acomplete stop. C. Develop an equation for the acceleration of...
0.150 kg stone rests on a frictionless, horizontal surface. A bullet of mass 7.00 g ,...
0.150 kg stone rests on a frictionless, horizontal surface. A bullet of mass 7.00 g , traveling horizontally at 300 m/s , strikes the stone and rebounds horizontally at right angles to its original direction with a speed of 240 m/s . A)Compute the magnitude of the velocity of the stone after it is struck. B)Compute the direction of the velocity of the stone after it is struck. C)Is the collision perfectly elastic?
0.160 kg stone rests on a frictionless, horizontal surface. A bullet of mass 8.00 g ,...
0.160 kg stone rests on a frictionless, horizontal surface. A bullet of mass 8.00 g , traveling horizontally at 390 m/s , strikes the stone and rebounds horizontally at right angles to its original direction with a speed of 220 m/s . Part A:Compute the magnitude of the velocity of the stone after it is struck. PartB: Compute the direction of the velocity of the stone after it is struck. PartC: Is the collision perfectly elastic? yes or no
Problem 4 A uniform solid spherical ball of mass M and radius R rests on a horizontal surface. Assume a constant coeffi...
Problem 4 A uniform solid spherical ball of mass M and radius R rests on a horizontal surface. Assume a constant coefficient of friction (this means that the frictional force is equal to the normal force multiplied by u). The acceleration due to gravity is g. At time t 0, the bal is struck impulsively on center, causing it to go instantaneously from rest to initial rotation horizontal speed vo with a no (a) Find the horizontal speed, and the...
fired at an angle of 45° with the horizontal at an initial speed of 130 feet per second. What are the components when the projectile is at its maximum height? Use the equations below to find the tangential and normal components of acceleration for a projectile h r(e)= (vot cos(0)i + vot sin(e)- 162)i + v(t) Vo cos(6e)i + (vo sin(0) -32t)j a(t) -32j (Vo cos(0))i + (vo sin(0) - 32t)j vo2 Vw(cos) T(t) + (vo sin(0) 32t)2 (Vo sin(e)-...
3. A stone is shot up vertically in the air from the ground with an initial speed of 60 m/s. i) Calculate the height from the ground and the speed ofthe stone 7 seconds after It was shot. (ii) 7 seconds after the hot, is the stone moving upward or downward? Justify your (ii) Calculate the maximam height from the ground the stone will reach. 2.You ary at the top ofa 90 m ผ wer, you tossihp a' stone, Calculate...
1. A ball of mass m is thrown with speed vo at an angle 0 with respect to the horizontal. Let the drag force from the air take the form f Newton's second law, the r- and y-components of the acceleration of the ball are given by = mav where a is a constant and v is the speed of the ball. By du (t) = -av,(t), dt de,(t) ay(t)= -g-au,(t), dt where ug (t) and v,(t) are the x-...
Problem 4 A uniform solid spherical ball of mass M and radius R rests on a horizontal surface. Assume a constant coefficient of friction (this means that the frictional force is equal to the normal force multiplied by u). The acceleration due to gravity is g. At time t 0, the bal is struck impulsively on center, causing it to go instantaneously from rest to initial rotation horizontal speed vo with a no (a) Find the horizontal speed, and the...
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