With what speed (in m/s) did she leave it? (Round your answer to at least three significant figures.) (d) To what height (in m) did she jump upon leaving the floor?
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- If a 2.1 kg object is initially at rest on a frictionless, horizontal surface and subjected to a 13.7 N force in the positive x-direction over a distance of 3.49 meters, what will the object's final speed be? Assume the answer in in m/s.Can you please help me with this question please? Thank you so much!Two blocks are connected by a light string that passes over a frictionless pulley as in Figure 1. The system isreleased from rest while m2 is on the floor and m1 is a distance h above the floor.a) Assuming m1 > m2, find an expression for the speed of m1 just as it reaches the floor.b) Taking m1=6.5 kg, m2=4.2 kg, and h=3.2 m, evaluate your answer to part (a).c) Find the speed of each block when m1 has fallen a distance of 1.6m.
- If a 2.3 kg object is initially at rest on a frictionless, horizontal surface and subjected to a 10.2 N force in the positive x-direction over a distance of 4.1 meters, what will the object’s final speed be? Assume the answer in in m/s.The only force acting on a 4.5 kg body as it moves along the positive x axis has an x component Fx = -6x N, where x is in meters. The velocity of the body at x = 1.9 m is 8.2 m/s. (a) What is the velocity of the body at x = 4.5 m? (b) At what positive value of x will the body have a velocity of 5.9 m/s?= -3x N, where x is in meters. The velocity of the body at The only force acting on a 3.8 kg body as it moves along the positive x axis has an x component Fx x = 2.5 m is 11 m/s. (a) What is the velocity of the body at x = 4.2 m? (b) At what positive value of x will the body have a velocity of 3.4 m/s? (a) Number Units (b) Number Units
- The only force acting on a 3.6 kg body as it moves along the positive x axis has an x component Fx = - 5x N, where x is in meters. The velocity of the body at x = 1.8 m is 9.0 m/s. (a) What is the velocity of the body at x = 4.1 m? (b) At what positive value of x will the body have a velocity of 2.5 m/s?Case 2: A 450 kg roller coaster car starts at the top of a 35.6 meter high hill, with a velocity of 3.4 m/s. Point B is at the top of a second hill which is 22.7 meters high. After traveling down the second hill, the car reaches ground level. It travels across a flat section, where the force of friction is 78.7 N. Point C is located 11.8 meters into the flat section. Point A B с Gravitational Potential Energy Elastic Potential Energy Kinetic Energy Energy Lost to Friction Total Mechanical EnergyProblem 1: A stationary soccer ball of mass m= 0.74 kg is kicked with a constant force of F = 19 N. The player's foot is in contact with the ball for t = 0.39 s.
- A horizontal force of 80.0 N is applied to a 5.00 kg block as the block slides a distance of 0.800 m along a horizontal floor. The coefficient of kinetic friction between the floor and the block is 0.500. If the block is initially at rest, how fast is it moving at the end of the displacement?The only force acting on a 4.2 kg body as it moves along the positive x axis has an x component Fx= -4x N, where x is in meters. The velocity of the body at x = 1.7 m is 8.1 m/s. (a) What is the velocity of the body at x = 3.9 m? (b) At what positive value of x will the body have a velocity of 2.3 m/s? (a) Number i Units (b) Number i UnitsYour answer is partially correct. The only force acting on a 4.5 kg body as it moves along the positive x axis has an x component F,= -4x N, where x is in meters. The velocity of the body at x = 1.4 m is 10 m/s. (a) What is the velocity of the body at x = 3.2 m? (b) At what positive value of x will the body have a velocity of 2.0 m/s? (a) Number 9.62 (b) Number 1.94 eTextbook and Media Units Units m/s m