(Solved): 6) A car traveling at \( 5.0 \mathrm{~m} / \mathrm{s} \) has a constant acceleration of \( 4.0 \mat ...

6) A car traveling at \( 5.0 \mathrm{~m} / \mathrm{s} \) has a constant acceleration of \( 4.0 \mathrm{~m} / \mathrm{s}^{2} \) in the same direction as the velocity. After 20 meters, the speed is a. \( 15.2 \mathrm{~m} / \mathrm{s} \). b. \( 17.4 \mathrm{~m} / \mathrm{s} \). c. \( 13.6 \mathrm{~m} / \mathrm{s} \). d. \( 11.8 \mathrm{~m} / \mathrm{s} \). 7) A metal disk has three wires holding it in place. One makes an angle of \( 340^{\circ} \), and has a force of \( 5 \mathrm{~N} \); the other makes an angle of \( 60^{\circ} \) and exerts a force of \( 8 \mathrm{~N} \). What is the force and angle of the third wire? The weight of the disk is negligible. a. \( 9.15 \mathrm{~N}, 220.45^{\circ} \) b. \( 8.32 \mathrm{~N}, 315^{\circ} \) c. \( 20.4 \mathrm{~N}, 125.5^{\circ} \) d. \( 10.15 \mathrm{~N}, 210.96 \) ?