Exam2021Proposed solution included

PHY 220 Basic Physics for Biological & Earth Sciences Exam 2021

About this paper

PHY 220: Second Semester Examination (25/06/2021), PHY220 Basic Physics for Biological and Earth Sciences, Department of Physics, Faculty of Science, University of Buea: average speed and velocity over a round trip, and kinematics/friction of a block sliding down an incline.

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University of Buea

Faculty of Science - FS

Animal Biology - ZAP

PHY2202021

Basic Physics for Biological & Earth Sciences

Exam · Second Semester · Level 200

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  1. A person walks first at a constant speed of 5.00m/s along a straight line from point A to point B and then moves back along the line from B to A at a constant speed of 3.00m/s. What is: a) Her average speed over the entire trip? (5mks) b) Her average velocity over the entire trip? (5mks)

  2. A 3.00kg block starts from rest at the top of a 30.0 ◦ incline and slides a distance of 2.00m down the incline in 1.50s. Find: a) The magnitude a of the acceleration of the block. (5mks) b) The coefficient of kinetic friction μk between the block and the plane. (5mks) c) The friction force ⃗ fk acting on the block. (5mks) d) The speed v2 of the block after it has slid 2.00m. (5mks)

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At a glance

Course code
PHY220 (PHY 220)
Type
Exam
Year
2021
Level
Level 200
Semester
Second Semester
Proposed solution
Included

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