Asked by Gail

Suppose a stone is thrown at an angle of 30 degrees below the horizontal, if it strikes the ground 57m away, find (a)the time of flight, (b)the initial speed, and (c) the speed and the angle of the velocity vector with respect to the horizontal impact.
Answered by drwls
If it is thrown 30 degrees below horizontal, on level ground, it strikes the ground right away.

Are you sure you copied the problem correctly?
Answered by Gail
yes the question was copied correctly.
Answered by bobpursley
How high is the stone when thrown?
Answered by Gail
There was no height given and no other info given for this problem. Per the textbook, the answers are (a) 1.57sec (b) 41.9m/s (c) 51.3m/s and -45 degree angle. But I can't figure out how the answers were calculated?
Answered by bobpursley
Nor can I.
There are no AI answers yet. The ability to request AI answers is coming soon!