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1-D Motion Kinematics Problem
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[QUOTE="tia89, post: 4292547, member: 464176"] The motion here is split in three parts. 1st: uniform rectilinear motion with speed 80m/s until it is 1000 m high 2nd: uniformly decelerated motion with initial velocity and acceleration given by -g (remember that it is still going up, so the terrestrial gravity is opposed to the motion) 3rd: uniformly accelerated motion when falling until reaches the ground (acceleration again g but this time in the direction of the motion as the missile is falling). What you have to do is compute the time the first phase takes, then with the usual two equations for accelerated motion (data are initial velocity 80 m/s, initial height 1000 m, final velocity 0 m/s) you can compute the final height and the time to reach it, then you can compute the time it takes from this final height to reach the ground and how fast it goes when touching ground (data are this time initial height you just computed, initial velocity 0 m/s, final height 0 m). [/QUOTE]
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Introductory Physics Homework Help
1-D Motion Kinematics Problem
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