Answer to Question #110892 in Physics for Kew Ming Hui

Question #110892
An object is launched at a velocity of 20 m/s in a direction making an angle of 25° upward with the horizontal
1
Expert's answer
2020-04-21T19:03:06-0400
h=(vsin25)22g=(20sin25)22(9.8)=3.64 mh=\frac{(v\sin{25})^2}{2g}=\frac{(20\sin{25})^2}{2(9.8)}=3.64\ m

t=2(vsin25)g=2(20sin25)(9.8)=1.72 st=\frac{2(v\sin{25})}{g}=\frac{2(20\sin{25})}{(9.8)}=1.72\ s

R=vcos25t=20cos25(1.72)=31.26 mR=v\cos{25}t=20\cos{25}(1.72)=31.26\ m


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