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**Unformatted text preview: **Physics 2210 Spring Semester 2008 Anthony Pantziris Name'———' un1d u _______
Discussion TA circle : Aaron Yuan Xiao REPORT ALL NUMBERS TO THREE SIGNIFICANT FIGURES!
Use the conversion constants and data given on the front page. A projectile is launched from the point (x = 0, y = 0) at an angle of 450°
and a speed of 50.0 m/s. The ground is level for 100 m and then dr0ps at
a 450° slope. (a) Find the maximum height of the projectile. (b) Find the speed of the projectile 3.00s after launch. (c) Find the x and y coordinates of the point of impact of the projectile.
(d) Find the speed of the projectile at the time of impact. (e) Find the time of ﬂight of the projectile. a. ‘2 E
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Discussion TA circle : Aaron Yu . Xiao REPORT ALL NUMBERS TO THREE SIGNIFICANT FIGURES!
Use the conversion constants and data given on the front page. Two blocks, m1 = 200 kg and m2 = 100 kg, are connected by a lightweight cord over
a lightweight frictionless pulley as shown in the drawing. The coefﬁcient of kinetic
friction between the block and the incline is 0.300. (a) Draw free body diagrams for each block.
(b) Find the acceleration of the blocks.
(c) Find the tension of the cord.
I (d) Find the minimum coefﬁcient of static friction between the block (m1) and the
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Spring Semester 2008
Anthony Pantziris NWM— unid: u a
Discussion TA circle '@ Yuan Xiao
' REPORT ALL NUMBERS T0 TI-IREE SIGNIFICANT FIGURES!
Use the conversion constants and data iven on the front a e. A block of mass m = 2.00 kg slides inside a semicircular surface of radius r = 0.500 m as in the ﬁgure. When the block is located at an angle of 300° from
the vertical, its speed is 0.500 m/s and is sliding downward. The coefﬁcient of
kinetic friction between the block and the surface is 0.250. (3) Draw a free body diagram for the block at that point. (b) Calculate the centripetal acceleration of the block at that point.
(c) Calculate the normal force on the block at that point. ((1) Calculate the tangential acceleration of the block at that point.
(e) What is the magnitude of the net force on the block at that point? (aim Mt)
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