Find the childs speed at the lowest point
A 19kg child sits in a swing supported by two chains each 3m long. If tension in each chain at the lowest point is 140N find the childs speed at the lowest point.
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Discuss the role of Christian monasticism in sustaining European civilization during the early Middle Ages.
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An object undergoes uniformly accelerated motion from point x1 = 3 m at time t1 = 2 s to point x2 = 42 m at time t2 = 7 s. (a) If the magnitude of the instantaneous velocity at t1 is v1 = 3 m/s, what is the instantaneous velocity v2 at time t2?
Determine (a) how long it takes the first rock to hit the ground and (b) at what velocity it hits. Determine (c) how long it takes the second rock to hit the ground.
Jack and Jill are on two different floors of their high rise office building and looking out of their respective windows. Jack sees a flower pot go past his window ledge and Jill sees the same pot go past her window ledge a little while later. The
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The cannonball is fired at a speed of 52 m/s and at an angle of 28°. A second cannonball that was accidentally dropped hits the moat below in 1.6 s. How tall is the top of the castle wall?
A motorist drives north for 39.0 minutes at 88.5 km/h and then stops for 15.0 minutes. He then continues north, traveling 130 km in 1.80 h. What is his total displacement?
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