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At timet= 0 s, a puck is sliding on a horizontal table with a velocity 10.0 m/s, 60.0° above the +xaxis.As the puck slides, a constant acceleration acts on it that has the following components:

At timet= 0 s, a puck is sliding on a horizontal table with a velocity 10.0 m/s, 60.0° above the +xaxis.As the puck slides, a constant acceleration acts on it that has the following components:ax= – 0.5 m/s2anday= – 1.0 m/s2. What is the velocity of the puck at timet= 4.0 s?a.6.00 m/s, 71.3° above the +xaxisb.1.83 m/s, 62.0° above the +xaxisc.5.54 m/s, 57.2° above the +xaxisd.1.38 m/s, 65.2° above the +xaxise.4.50 m/s, 58.7° above the +xaxis1 pointsSave AnswerQuestion 21.A car that was initially moving at30 m/s accelerates in a straight­line path at aconstant rate. The car travelsa distance of 250 m in 5.0 seconds. What is the acceleration of the car?a.4.0 m/sb.6.0 m/sc.10 m/sd.5.0 m/se.8.0 m/s1 pointsSave Answer22222Question 31.Three runners start at the same place. Shaun runs 6.0 km due east and then runs 2.0 km duewest. Mark runs 4.0 km due east. Jeff runs 3.0 km due west and then runs 7.0 km due east.Which of the following is true concerning the displacement of each runner?a.Shaun’s displacement equals Jeff’s displacement, but Mark’s displacement is differentb.Shaun, Mark, and Jeff have the same displacementsc.Shaun’s displacement equals Mark’s displacement, but Jeff’s displacement is differentd.Shaun, Mark, and Jeff have different displacementse.Mark’s displacement equals Jeff’s displacement, but Shaun’s displacement is differen

 
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