04_InstSolManual_PDF_Part15

# 04_InstSolManual_PDF_Part15 - Newtons Laws of Motion 4-15...

• Notes
• 1

This preview shows page 1. Sign up to view the full content.

4.50. Set Up: Let be downward. The instrument and the lander have the same acceleration. Solve: (a) so Since is negative, is upward. is in the direction opposite to when the speed is decreasing. (b) The free-body diagram is given in Figure 4.50. T is the scale reading. gives so Figure 4.50 (c) On earth, so On Mars, so (d) The apparent weight is the scale reading, 60.5 N. The apparent mass m is the apparent weight divided by so the apparent mass is 16.3 kg. 4.51. Set Up: Let be upward. At his maximum height, While he is in the air, Solve: (a) and gives (b) For the motion while he is pushing against the floor, and gives The acceleration is upward. (c) The free-body diagram while he is pushing against the floor is given in Figure 4.51. is the vertical force the floor applies to him. Figure 4.51 (d) gives and The force he applied to the ground has this same magnitude and is downward. Reflect: The ground must push upward on him with a force greater than his weight in order to give him an
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: upward acceleration. F 5 m 1 g 1 a 2 5 1 90.8 kg 21 9.80 m / s 2 1 16.2 m / s 2 2 5 2.36 3 10 3 N. F 2 mg 5 ma g F y 5 ma y x y F mg a F S a y 5 v y 2 v y t 5 4.85 m / s 2 0.300 s 5 16.2 m / s 2 . v y 5 v y 1 a y t 5 0.300 s. v y 5 4.85 m / s v y 5 0, v y 5 " 2 2 a y 1 y 2 y 2 5 " 2 2 1 2 9.80 m / s 2 21 1.2 m 2 5 4.85 m / s v y 2 5 v y 2 1 2 a y 1 y 2 y 2 y 2 y 5 1.2 m. a y 5 2 9.80 m / s 2 v y 5 0, m 5 w / g 5 90.8 kg a y 5 2 9.80 m / s 2 . v y 5 0. 1 y g M , T 5 6.52 w M . w M 5 mg M 5 9.28 N, T 5 2.47 w E . w E 5 mg E 5 24.5 N, x y T mg a m 1 g 2 a y 2 5 1 2.50 kg 21 3.71 m / s 2 1 20.5 m / s 2 2 5 60.5 N T 5 mg 2 T 5 ma y g F y 5 ma y v S a S a S a y a y 5 v y 2 v y t 5 444 m / s 2 5.36 3 10 3 m / s 240 s 5 2 20.5 m / s 2 . v y 5 v y 1 a y t t 5 240 s. v y 5 1600 km / h 5 444 m / s, v y 5 19,300 km / h 5 5.36 3 10 3 m / s, 1 y Newton’s Laws of Motion 4-15...
View Full Document

• Spring '07
• Shoberg
• Acceleration, Mass, free-body diagram, apparent weight, MG 5, apparent mass

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern