Question
A helicopter is rising at 4.7 m/s when a bag is dropped from it. (Assume that the positive direction is upward.)
(a) After 2.0 s, what is the bag's velocity?
(b) How far has the bag fallen?
(c) How far below the helicopter is the bag?
(a) After 2.0 s, what is the bag's velocity?
(b) How far has the bag fallen?
(c) How far below the helicopter is the bag?
Answers
bobpursley
v(2)=vo*2-9.8(2^2)
see if you can do the rest.
see if you can do the rest.
i still cant do it
bobpursley
b) d(2)=Vo*2-1/2 g (4)
oops, I did a error in a)
v(2)=vo -9.8*2 and vo is 4.7
c) Ok, on how far, it fell b), but the helo went up
farbelow= 4.7*2+answerinb)
oops, I did a error in a)
v(2)=vo -9.8*2 and vo is 4.7
c) Ok, on how far, it fell b), but the helo went up
farbelow= 4.7*2+answerinb)
okay i got the answer to b.
now is a v(2)= vo+(9.8)(2)
or
v(2)= vo -(9.8)(2)?
now is a v(2)= vo+(9.8)(2)
or
v(2)= vo -(9.8)(2)?
bobpursley
9.8 is a negative quantity, if up is +
so the answer to a should be -14.9 m/s
and c should be -.08?
and c should be -.08?
YES
Related Questions
A helicopter is rising at 5.5 m/s when a bag of its cargo is dropped. (Assume that the positive dire...
A helicopter is rising at 5 m/s when a bag is dropped. After 2 seconds what is the bag's velocity? w...
A ball is dropped from a helicopter which is descending at 1.5 m/s. After 2 seconds, what are
a)...