(II) Tarzan plans to cross a gorge by swinging in an arcfrom a hanging vine (Fig. 5–42).If his arms are capable ofexerting a force of 1150 N onthe vine, what is the maximumspeed he can tolerate at thelowest point of his swing? Hismass is 78 kg and the vine is4.7 m long.FIGURE 5-42Problem 18.

Tarzan plans to cross a gorge by swinging in an arc from a hanging vine. at lowest point being at…

Answered: (II) Tarzan plans to cross a gorge by…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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5) A block of mass, m = 10.0 kg, is sliding along a frictionless horizontal surface with an initial velocity of 8.00 m/s when it encounters a frictionless ramp inclined at an angle of 0=30.0° above the horizontal. Calculate the speed of the block when it reaches a vertical height of 1.4 meters. [You may use g=10.0 m/s and choose the closest answer] A) 3.0 m/s B) 4.0 m/s 5.0 m/s D) 6.0 m/s E) 7.0 m/s m 0 m = 10kg
) If you shoot a ping pong ball straight upward, it eventually stops, turns around, and returns to theground from where it was shot. In the real world air drag plays a big role in addition to gravity. Make anargument based on course topics/material for which work was greater magnitude - work done on the ballwhile ascending to the highest position, or work done on the ball while descending from that position backto the ground. Keep in mind that light weight objects in air tend to return relatively slowly to the ground.
Calculate the force needed to bring a 950-kg car to rest from a speed of 90.0 km/h in a distance of 120 m (a fairly typical distance for a non-panic stop). «
11.)A 25 kg block is to be pushed down a 7.0 degree incline and should have a speed of 18m/s at the end of 72 meter. Coefficient of kinetic friction is 0.10. How much force is needed to push it down?
A 1.75 kg wood block is on a horizontal wood surface and a light string attached to the block passes over a frictionless pulley to a 775 g load that hangs freely (Fig. 8-10). If the 1.75 kg block is initially sliding toward the pulley, find (a) the acceleration of the block, and (b) the tension in the string
QI) ( A block of mass m-10 kg is on a frictionless horizontal surface and pushed against the spring, whose spring constant k-240 N/m, compressing the spring by 3m. The block is then released from rest. The block is observed to move up the incline and come back down, hitting and 771 compressing the spring by a maximum distance of Im. The inclined plane has www. friction and makes an angle of 9 = 37° with the horizontal. a) Find the work done by friction from the moment the block is released till the moment it strikes the spring again. b) What is the maximum height the block can reach? c) Find the kinetic friction coefficient between the block and the inclined plane.
(2) Four dollies (A, B, C and D) on a plane are connected by three ropes, ropes 1, 2 and 3, as shown in the diagram. The rightmost dolly is powered and pulled in the overall rightward direction by a force of magnitude F. The 4 dollies accelerate with the same acceleration. The friction between the ground and the dolly is negligible. At this point, answer the following questions. The rope does not stretch and the mass of the rope is neglected.< 台車D m4 ロープ3 m3 台車C ロープ2 m2 台車B ロープ1 m1 台車A F At this point, increase the strength of the F. Which rope breaks first. The ropes are all of the same strength.< (3) With all four trolleys of the same mass m, establish the equation of motion for each trolley in the right-hand direction of the paper. The right direction of the paper is the x- direction and only the equation of motion in the x-direction is derived. Also, include the tension of the rope between A and B as the tension of the rope between B and C and the tension of the rope between C and…

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