Physics equations/03-Two-Dimensional Kinematics/Q:2Dmotion


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A
{A ball is kicked horizontally from a height of 2.3 m, at a speed of  7.8m/s. How far does it travel before landing? -a) 3.09 m. -b) 3.71 m. -c) 4.45 m. +d) 5.34 m. -e) 6.41 m.
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{A particle is initially at the origin and moving in the x direction at a speed of 3.7 m/s. It has an constant acceleration of 2.3 m/s2 in the y direction, as well as an acceleration of 0.5 in the x direction. What angle does the velocity make with the x axis at time t = 2.8 s? +a) 51.62 degrees. -b) 59.37 degrees. -c) 68.27 degrees. -d) 78.51 degrees. -e) 90.29 degrees.
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{At time, t=0, two particles are on the x axis. Particle A is (initially) at the origin and moves at a constant speed of 7.29 m/s at an angle of &theta; above the x-axis. Particle B is initially situated at x= 2.75 m, and moves at a constant speed of 2.98 m/s in the +y direction. At what time do they meet? -a) 0.24 s. -b) 0.29 s. -c) 0.34 s. +d) 0.41 s. -e) 0.5 s.
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{At time, t=0, two particles are on the x axis. Particle A is (initially) at the origin and moves at a constant speed of 7.17 m/s at an angle of &theta; above the x-axis. Particle B is initially situated at x= 2.04 m, and moves at a constant speed of 2.52 m/s in the +y direction. What is the value of &theta; (in radians)? -a) 0.27 radians. -b) 0.31 radians. +c) 0.36 radians. -d) 0.41 radians. -e) 0.47 radians.
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B
{A ball is kicked horizontally from a height of 2.7 m, at a speed of  7.5m/s. How far does it travel before landing? -a) 3.22 m. -b) 3.87 m. -c) 4.64 m. +d) 5.57 m. -e) 6.68 m.
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{A particle is initially at the origin and moving in the x direction at a speed of 4.3 m/s. It has an constant acceleration of 2.2 m/s2 in the y direction, as well as an acceleration of 0.3 in the x direction. What angle does the velocity make with the x axis at time t = 2.8 s? -a) 37.93 degrees. -b) 43.62 degrees. +c) 50.16 degrees. -d) 57.68 degrees. -e) 66.33 degrees.
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{At time, t=0, two particles are on the x axis. Particle A is (initially) at the origin and moves at a constant speed of 5.42 m/s at an angle of &theta; above the x-axis. Particle B is initially situated at x= 2.89 m, and moves at a constant speed of 2.26 m/s in the +y direction. At what time do they meet? -a) 0.49 s. +b) 0.59 s. -c) 0.7 s. -d) 0.84 s. -e) 1.01 s.
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{At time, t=0, two particles are on the x axis. Particle A is (initially) at the origin and moves at a constant speed of 5.15 m/s at an angle of &theta; above the x-axis. Particle B is initially situated at x= 2.05 m, and moves at a constant speed of 2.94 m/s in the +y direction. What is the value of &theta; (in radians)? -a) 0.46 radians. -b) 0.53 radians. +c) 0.61 radians. -d) 0.7 radians. -e) 0.8 radians.
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