(a) Explanation Given information: The velocity ( v 1 ) of parachutist is in free fall is − 200 km/h . The parachute is open at an altitude ( x 1 ) of 600 m . From position ( x 2 ) 586 m to ( x 3 ) 30 m the parachute is descend at constant rate ( v 2 ) of − 50 km/h . Calculation: Convert the kilometer per hour to meter per sec. Consider the velocity ( v 1 ) : v 1 = 200 km/h × ( 1 , 000 m 1 km ) × ( 1 hr 3 , 600 sec ) = − 55.556 m/s Consider the velocity ( v 2 ) . v 1 = − 50 km/h × ( 1 , 000 m 1 km ) × ( 1 hr 3 , 600 sec ) = − 13.889 m/s Tabulated the velocity ( v ) corresponding to time ( t ) in Table 1: t (sec) v ( m / s ) x (m) 0 -55.556 600 t 1 -13.889 586 t 2 -13.889 30 t 3 -0 0 Plot the v - t curve of parachute as in Figure (1). Plot the x - t curve of parachute as in Figure (2). Calculate time ( t 1 ) using the relation: ( x 2 ) − ( x 1 ) = t 1 ( v 1 + v 2 2 ) Substitute 586 m for x 2 , 600 m for x 1 , − 55.556 m/s for v 1 , and − 13.889 m/s for v 2 . 586 − 600 = t 1 ( − 55 (b) To determine The initial ( − a ) deceleration.

Loose Leaf for Vector Mechanics for Engineers: Statics and Dynamics

12th Edition

ISBN: 9781259977206

Author: BEER, Ferdinand P., Johnston Jr., E. Russell, Mazurek, David, Cornwell, Phillip J., SELF, Brian

Publisher: McGraw-Hill Education

See similar textbooks

Concept explainers

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be create…

Videos

Question

Chapter 11.3, Problem 11.66P

(a)

To determine

The time (ttotal) required for the parachutist to land after opening his parachute.

(b)

To determine

The initial (−a) deceleration.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 11.3, Problem 11.65P

Chapter 11.3, Problem 11.67P

Students have asked these similar questions

4- In the system shown in the figure, the water velocity in the 12 in. diameter pipe is 8 ft/s. Determine the gage reading at position 1. Elevation 170 ft 1 Elevation 200 ft | 8 ft, 6-in.-diameter, 150 ft, 12-in.-diameter, f = 0.020 f = 0.020 A B Hints: the minor losses should consider the contraction loss at A and the expansion loss at B.

What is the moment of Inertia of this body? What is Ixx, Iyy, and Izz

Consider a glass window (Hight = 1.2 m, Width = 2 m). The room thatfaces the window are maintained at 25 o C. The average temperature ofthe inner surface of the window is 5 o C. Calculate the total heat transferrate from through the window a) IdenCfy what type(s) of convecCon is important (circle one). • external forced (Chapter 7)• internal forced (Chapter 8)• natural convecCon (Chapter 9)• boiling and condensaCon (Chapter 10)b) IdenCfy the necessary equaCon(s) needed to solve the problem. c) IdenCfy important fluid properCes you need to solve the problem. d) Calculate the total heat transferred.

Chapter 11 Solutions

Loose Leaf for Vector Mechanics for Engineers: Statics and Dynamics

Ch. 11.1 - A bus travels the 100 miles between A and B at 50...Ch. 11.1 - Two cars A and B race each other down a straight...Ch. 11.1 - A snowboarder starts from rest at the top of a...Ch. 11.1 - The motion of a particle is defined by the...Ch. 11.1 - The vertical motion of mass A is defined by the...Ch. 11.1 - A loaded railroad car is rolling at a constant...Ch. 11.1 - A group of hikers uses a GPS while doing a 40-mile...Ch. 11.1 - The motion of a particle is defined by the...Ch. 11.1 - A girl operates a radio-controlled model car in a...Ch. 11.1 - The motion of a particle is defined by the...

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

The time ( t total ) required for the parachutist to land after opening his parachute.

Solution Summary: The author calculates the time required for the parachutist to land after opening his parachute. The velocity is (v_1).