Thank you so much! Please explain too, I\'m having trouble understanding this. B
ID: 1463157 • Letter: T
Question
Thank you so much! Please explain too, I'm having trouble understanding this.
B2-CT25: PROJECTLE MOTION FOR TWO ROCKS -VELOSITY AND ACCELERATION Two identical rocks are thrown horizontally from a cliff with different velocities. The rocks are thrown at the same time and are shown below while they are still in (he air after a few seconds. For the Instant shown: (a) Will the magnitude of the horizontal velocity of Rock A be (1) greater than, (li) less than, or (ill) equal to th magnitude of the horizontal velocity of Rock B? _____ Explain your reasoning. (b) Will the magnitude of the vertical velocity of Rock A be (I) greater than, (ii) less than, or (iii) equal to the magnitude of the vertical velocity of Rock B? _____ Explain your reasoning. (C) Will the magnitude of the horizontal acceleration of Rock A be (I) greater than, (ii) less than, or (iii) equal to the magnitude of the horizontal acceleration of Rock B? Explain your reasoning. (d) Will the magnitude of the vertical acceleration of Rock A be (I) greater than, (H) less than, or (iii) equal to the magnitude of the vertical acceleration of Rock B? Explain your reasoning.Explanation / Answer
a) here , as for both the rocks ,
the vertical initial velocity is zero ,
time taken to fall will be same .
as the rock B travels more distance ,
the magnitude of horizontal velocity of Rock A is greater than rock B
b)
as initial vertical velocity is zero for both the rocks.
the magnitude of vertical vellocity of rock A will be equal to rock B
c)
as there is no acceleration in horizontal direction ,
the horizontal acceleration of rock A will be equal to horizontal acceleration of rock B.
d)
for both the rocks
vertical acceleration = g in downwards direction .
hence ,
the vertical acceleration of rock A will be equal to vertical acceleration of rock B.
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