Guest

Problem ~a ballon is accending upwards with a velocity u m/s .after some time a stone is dropped .it takes t seconds to reach the ground ..find the distance travelled by stone.......sir my question is why do we take “u” negative ?

Problem ~a ballon is accending upwards with a velocity u m/s .after some time a stone is dropped .it takes t seconds to reach the ground ..find the distance travelled by stone.......sir my question is why do we take “u” negative ?

Grade:Select Grade

1 Answers

Abhinav
askIITians Faculty 387 Points
8 years ago
Because ballon is moving upward and stone dropped goes downward. Both have opposite direction of motion so you may take either of them negetive according to your convenience

Think You Can Provide A Better Answer ?

ASK QUESTION

Get your questions answered by the expert for free