W04 Design Theory Projectile Motion in_class prob_soln.pdf

# W04 Design Theory Projectile Motion in_class prob_soln.pdf...

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t Practice in Projectile Motion An object is thrown straight up from the ground with an initial velocity of An object is thrown horizontally with a velocity of 10 m/s from the top ofa20-m-high building. Where does the object straight the (Here the downward direction is taken to be positive.) 20 m/s upward & positive a= -9.8 infs2 downward &. negative lOni/s ^ ^^^: /^ ^ 2^^1^ ^T^ a '^ ^p ^ {^^ u.s'€- Ar "-/K. ^ Q"\ 2 (" c!'^. ^ ^~Zo-H m ••/ c f ^> ^ Vf< ^9 ;° (t^:^: f€}^C^ w/^'^^f-^j t^u>Ttjdlp<K»:n"C=WtHFKfn^m 4<T^f/^ €>...r~( /V^yc; ^ /^ ^ -^t ^'l.o^f /vyv -t X', / /'^^•— —-^"n €. ^ 17

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More practice in projectile motion Suppose the object had been thrown upward at an angle of 37° to the horizontal with a velocity of 10 m/s. Wliei c ciiiU ; (Y-dEtected motion taking dow-n as positive)
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