1
You visited us
1
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard XII
Physics
Velocity of COM
What is the f...
Question
What is the formula for velocity and acceleration of rocket when gravity is present?
Open in App
Solution
u
n
d
e
r
t
h
e
i
n
f
l
u
e
n
c
e
o
f
g
r
a
v
i
t
y
,
v
e
l
o
c
i
t
y
o
f
r
o
c
k
e
t
i
s
g
i
v
e
n
b
y
:
∫
v
0
v
d
v
=
-
u
∫
m
0
m
d
m
m
-
∫
0
t
g
d
t
A
c
c
e
l
e
r
a
t
i
o
n
i
s
g
i
v
e
n
b
y
:
a
=
d
v
d
t
=
u
M
d
M
d
t
-
g
Suggest Corrections
0
Similar questions
Q.
A rocket of mass
120
k
g
is fired in a gravity free space is ejecting gases with velocity
600
m
/
s
at the rate of
1
k
g
/
s
. What will be the initial acceleration of the rocket?
Q.
What is the value of acceleration due to gravity for a body moving against gravity if its velocity is positive?