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Midterm1A

# Midterm1A - PHYS 201 Print Name ID Number 950 Midterm Exam...

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PHYS 201 Midterm Exam I 18 October 2006 Print Name Signature ID Number 950 Tutorial Section (day, time) A-1 Part I [30] 1. A projectile is shot from the edge of a vertical cliff with an initial speed of 38.0 m/s at an angle of 29.0° above the horizontal. The projectile hits the ground at a horizontal distance of 178 m from the base of the cliff. (a) Draw a sketch illustrating the problem and showing the path of the projectile and the directions you pick to be positive. [4] (b) Find the horizontal and vertical components of the shot’s initial velocity. [6] (c) What is the projectile’s velocity at its highest point above the ground? [4] (d) Find the time the projectile is in the air. [6] (e) Find the height of the cliff. [6] (f) What is the projectile’s acceleration just before it hits the ground? [4]

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PHYS 201 Midterm Exam I 18 October 2006 A-2 Part II [70] 2. A 1250 kg car traveling to the right accelerates from 36 .0 km/h to 90.0 km/h in 4.50 s. Assuming constant acceleration, find (a) the acceleration of the car in SI units (m/s 2 ), and (b) the net force on the car during the acceleration. Let right be the positive direction.
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Midterm1A - PHYS 201 Print Name ID Number 950 Midterm Exam...

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