Please help with soloving letter (f) and letter (h). PHY2048L Pre-Lab: Projectil

Question

Please help with soloving letter (f) and letter (h). PHY2048L Pre-Lab: Projectile Motion Read the lab manual and chapter on 2D kinematics in your physics textbook. Then complete this assignment V. Q 01 At time t = 0.00 s, a projectile is launched straight upward and it reaches height h = 2.70 m from the launch point. . a) what is the initial launch speed of the projectile? 2 291 27 Vay = 7.17-eld 3392 dy usng ahal Q 02 The same launch device (from the previous part) is used to launch the e projectile at an angle 0 32.0° at height h 1.60 m above the floor (yo O). Faqules a) What is the initial horizontal velocity of the projectile? second y yo+vt-ba b) What is the initial vertical velocity of the projectile? c) What maxímum height ymox does the projectile reach? 2.3

Explanation / Answer

Q 01. a. given maximum height, h = 2.7 m

let initial velocity be v

then at highest point, final velocity = 0

hence

2*g*h = v^2

v = sqroot(2*g*h) = 7.2783 m/s

Q 02. given theta = 32 deg

initial height ho = 1.6 m

initial speed, v = 7.2783 m/s

maximum height = h + ho

then

2*g*h = (vsin(theta))^2

2*9.81*h = (7.27*sin(32))^2

h = 0.7581 m

max height = 2.3581 M

F. time taken to reach the ground from maximum height = t

h + ho = 0.5gt^2

t = 0.6933 s

g. time taken to reach the highest point = t'

0 = vsin(theta) - gt'

t' = 0.3931612 s

total time of flight = t + t' = 1.0864612 s

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