3. A truck drives off a cliff with horizontal velocity of 8 m/s. The cliff is 138 m high. How much time has elapsed when it hits the ground? What is its horizontal displacement? What is its final velocity just before impact?

3. A truck drives off a cliff with horizontal velocity of 8 m/s. The cliff is 138 m high. How much time has elapsed when it hits the ground? What is its horizontal displacement? What is its final velocity just before impact?

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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Question

Help question 3

1. In a projectile motion problem, what is the maximum number of unknowns that can be solved?
a. 1
b. 2
c. 3
d. 4
2. The time of flight of a projectile, fired over level ground, with initial velocity v. at angle 9, is
a.
(v. sin 01/g
b.
(2v, sin 9)/g
c.
(v. cos 0)/g
d. (2vo cos 9)/g
3. A truck drives off a cliff with horizontal velocity of 8 m/s. The cliff is 138 m high. How much time
has elapsed when it hits the ground? What is its horizontal displacement? What is its final
velocity just before impact?
4. The skier leaves the ramp at A at 8, = 25°. She strikes the ground at B. What is the initial speed
and the speed she strikes the ground at B?
m
100 m

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