Example 3: A ball of mass (m,) and a block of mass (m2) are attached by a light weight cord that passes over a frictionless pulley negligible mass (Figure-7). Find the magnitude of the acceleration of the two objects and the tension in the cord? ucord ming migcase

Example 3: A ball of mass (m,) and a block of mass (m2) are attached by a light weight cord that passes over a frictionless pulley negligible mass (Figure-7). Find the magnitude of the acceleration of the two objects and the tension in the cord? ucord ming migcase

Name: Example 3: A ball of mass (m,) and a block of mass (m2) are attached
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Description: Example 3: A ball of mass (m,) and a block of mass (m2) are attached by a lightweight cord that passes over a frictionless pulley negligible mass (Figure-7). Findthe magnitude of the acceleration of the two objects and the tension in the cord?pull c

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 95CP: On June 25, 1983, shot-putter Udo Beyer of East Germany threw the 7.26-kg shot 22.22 m, which at...

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On June 25, 1983, shot-putter Udo Beyer of East Germany threw the 7.26-kg shot 22.22 m, which at that time was a world record. (a) If the shot was released at a height of 2.20 m with a projection angle of 45.00, what was its initial velocity? (b) If while in Beyer’s hand the shot was accelerated uniformly over a distance of 1.20 m, what was the net force on it?
Block B is released from rest and pulls Block A up the rough surface as shownin Figure Q2(a). Knowing that the mass for block A is 180 kg and the mass forblock B is (110+a) kg, where a = 8. The coefficient of kinetic friction between block A and the surface is 0.4. Pulleys are massless and smooth. With suitable diagram(s), determine the accelerations of Block A and B.
Two forces are applied to a 22 kg cart on a frictionless surface as shown. At a certain instant, Force A is 86 N to the right, and Force B is 10 N to the left. What is the acceleration of the cart at this instant, in m/s2?
Imagine a person kayaking across a lake . Can you name a force pair at work? Also explain which one of Newton's Laws this describes.
1. Yall watch out: Wellington Wildcat just got a jetpack. If Wellington, the jetpack, and his uncontrollableexcitement have a total mass m and the jetpack can provide a constant thrust force of Fthrust, A. Determine an expression for Wellington’s speed at a height h if the soaring mascot launchedcompletely vertically (neglecting air resistance). Don’t forget to draw a free-body diagram withan appropriate coordinate system. Your expression for vf should depend on Fthrust, m, g, and h.B. What happens to vf in the limit Fthrust → mg? What happens if Fthrust < mg?C. What is vf if Fthrust = 2mg?
A 10 kg monkey climbsup a massless rope that runs over africtionless tree limb and backdown to a 15 kg package on theground . (a) What is themagnitude of the least accelerationthe monkey must have if it is to liftthe package off the ground? If, afterthe package has been lifted, themonkey stops its climb and holdsonto the rope, what are the (b)magnitude and (c) direction of themonkey’s acceleration and (d) thetension in the rope?
Figure below shows an overhead view of 0.0250 kg lemon half and two of the three horizontal forces that act on it as it is on a frictionless table. Force −→F1 has a magnitude of 6 N and is at θ1 = 30◦. Force −→F2 has a magnitude of 7 N and is atθ2 = 30◦. In unit-vector notation, what is the third force if the lemon half (a) is stationary, (b) has the varying velocity−→v = 13t ˆi − 14t ˆj m/s2, where t is time?
2) Two people are pulling a boat through the water as shown in the Figure below. Each exerts a force of 600 N directed at an angle of 30.0° relative to the forward motion of the boat. If the boat moves forward with constant velocity, find the resistive ?⃗⃗force exerted by the water on the boat. Does your answer change if the boat is moving backward at constant velocity?
A block of mass 47 kg is situated on the floor of an elevator that is accelerating upward at 3.03 m/s2 . What magnitude force does the elevator floor exert on the block?
The only two forces acting on a body have magnitudes of 20 N and 35 N and directions that differ by 80.The resulting acceleration has a magnitude of 20 m/s2. What is the mass of the body?
Monkey D. Luffy is sailing together with his crew, the “Straw Hat Pirates” in the West Philippine Sea. Thewind is quite strong and is exerting a 420N force on their sailboat “Thousand Sunny” directed to the south.The waves are also exerting a force of 200N westward. If Thousand Sunny has a mass of 305 kg (including thecrew and their luggages), what is the magnitude and direction of its acceleration?
The rocket sled shown in the figure accelerates to the right at a rate of 29.4m/s2. Its passenger has a mass of 73 kg. (a) Calculate the horizontal component of the force Fh the seat exerts against his body. Fh = 2146.2N (b) Compare this with his weight by using a ratio. Fh/w (d) Calculate the magnitude of the total force the seat exerts against his body. I need to find the net force. Thank you.