LECTURE EXAMPLES - CHAPTER 8 A. SMALL MASS SLIDES ALONG A FRICTIONLESS TRACK, AS SHOWN. THE...
A small block of mass m slides along the frictionless loop the loop track shown below. If it starts from rest at point A, what is the speed of the block at point B? (v = squareroot (10 g R)) What is the net force acting on the block at point C? (Don't forget the gravitational force. (F = -mg (8i + j) At what height above the bottom should the block be released so that the normal force exerted...
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A particle slides along the frictionless track shown in the figure, starting at rest from point A. Find its speed at B. Express your answer using two significant figures. Find its speed at C. Express your answer using two significant figures. Find the approximate location of its right-hand turning point. Express your answer using two significant figures.
e) 24 N (numbers 3-4) A small block of mass m slides along the inner, frictionless surface of a vertical circular track. At point A the magnitude of the block's acceleration is 2g. 19 3. What is the magnitude of the normal force on the block at point B? a) 4mg b) 5mg c) 6mg d) 7mg e) 8mg 8 4. What is the magnitude of the normal force on the block at point C? a) 4mg b) 5mg c)...
A small bead with a mass m = 15.0 g slides along the
frictionless wire form shown in the figure. The three heights
hA = 7.70 m, hB = 5.50 m,
and hC = 2.90 m are all measured from the
floor. The bead is released from rest at point A.
a) What is the speed of the bead at points B and C?
vB
= ____ m/s
vC
= ____ m/s
(b) What is the net work done on...
A small mass m slides without friction along the looped apparatus shown in Fig. 6-39. If the object is to remain on the track, even at the top of the circle (whose radius is r), from what minimum height h must it be released? (Answer in terms of r.)
Block 1, of mass = 3.70
, moves along a frictionless air track with
speed = 23.0
. It collides with block 2, of mass = 13.0
, which was initially at rest. The blocks stick
togetherafter the collision.
part A
Find the magnitude of the total initial momentum of the
two-blocksystem.
Express your answernumerically.
part B
Find , the magnitude of the final velocity of the
two-blocksystem.
Express your answer numerically
part C
What is the change in the...
Block 1, of mass m1 = 1.10 kg , moves along a frictionless air track with speed v1 = 29.0 m/s . It collides with block 2, of mass m2 = 45.0 kg , which was initially at rest. The blocks stick together after the collision. (Figure 1) Find the magnitude pi of the total initial momentum of the two-block system. Find vf, the magnitude of the final velocity of the two-block system. What is the change ΔK=Kfinal−Kinitial in the...
Block 1, of mass m1 = 2.30 kg, moves along a frictionless air track with speed v1 = 31.0 m/s. It collides with block 2, of mass m2 = 13.0 kg, which was initially at rest. The blocks stick together after the collision. A) Find the magnitude pi of the total initial momentum of the two-block system. B) Find vf, the magnitude of the final velocity of the two-block system C)What is the change ΔK=Kfinal−Kinitial in the two-block system's kinetic...
7. A block is released from rest at point P and slides along the frictionless track shown. At point Q, its speed is: I B) 2g(h- h) C) (h. - n12g D) E) (h, -h)/29 8. A ball of mass m, at one end of a string of length L, rotates in a vertical circle just fast enough to prevent the string from going slack at the top of the circle. Assuming mechanical energy is conserved, the speed of the...
Block 1, of mass m1m1m_1 = 6.70 kgkg , moves along a frictionless air track with speed v1v1v_1 = 27.0 m/sm/s . It collides with block 2, of mass m2m2m_2 = 57.0 kgkg , which was initially at rest. The blocks stick together after the collision. (Figure 1) Figure 1 of 1The figure shows two states of a system of two blocks, labeled 1 and 2, of masses m 1 and m 2, respectively. Block 2 is to the right...