Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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P1 Answer 2
1. Three blocks of masses 3.0, 5.0, and 10.0 kg are connected by massless strings, one of which passes over a
frictionless pulley of negligible mass, as shown below. Draw the FBD of all masses and calculate each of
the following: [C6]
5.0 kg
3.0 kg
a. The acceleration of the 10.0 kg block. [A2]
b. The tension in the string supporting the 5.0 kg block. [A3]
c. The tension in the string connected to the 3.0 kg block. [A2₂]
2. On a circular racetrack of radius 91.1 m, a 1031 kg car takes 25.1 s to complete one lap.
a. Draw the FBD of the car. [C2]
b. What is the centripetal force acting on the car, and which force provides it? [A2]
c. Find the coefficient of friction on the surface of the track. [A3]
3.
Calculate the period of Pluto (in Earth years) given the following data: [A5]
msun 1.99 x 1030 kg
mPluto 1.31 x 10²2 kg
TSP = 5.9 x 10°⁹ km
G=6.67 x 10-¹¹ Nm²/kg²
10.0 kg
Transcribed Image Text:1. Three blocks of masses 3.0, 5.0, and 10.0 kg are connected by massless strings, one of which passes over a frictionless pulley of negligible mass, as shown below. Draw the FBD of all masses and calculate each of the following: [C6] 5.0 kg 3.0 kg a. The acceleration of the 10.0 kg block. [A2] b. The tension in the string supporting the 5.0 kg block. [A3] c. The tension in the string connected to the 3.0 kg block. [A2₂] 2. On a circular racetrack of radius 91.1 m, a 1031 kg car takes 25.1 s to complete one lap. a. Draw the FBD of the car. [C2] b. What is the centripetal force acting on the car, and which force provides it? [A2] c. Find the coefficient of friction on the surface of the track. [A3] 3. Calculate the period of Pluto (in Earth years) given the following data: [A5] msun 1.99 x 1030 kg mPluto 1.31 x 10²2 kg TSP = 5.9 x 10°⁹ km G=6.67 x 10-¹¹ Nm²/kg² 10.0 kg
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