The position of a particle as a function of time t, is given by x(t)=at+bt2−ct3 where a, b, c are constants. When the particle attains zero acceleration, then its velocity will be :
(a)
a + 
(b)
a + 
(c)
a + 
(d)
a + 
The position of a particle as a function of time t, is given by x(t)=at+bt2−ct3 where a, b, c are constants. When the particle attains zero acceleration, then its velocity will be :
(a)
a +
(b)
a +
(c)
a +
(d)
a +
Question ID - 51289 | SaraNextGen Top Answer
The position of a particle as a function of time t, is given by x(t)=at+bt2−ct3 where a, b, c are constants. When the particle attains zero acceleration, then its velocity will be :
(a)
a +
(b)
a +
(c)
a +
(d)
a +
|
The position of a particle as a function of time t, is given by x(t)=at+bt2−ct3 where a, b, c are constants. When the particle attains zero acceleration, then its velocity will be : |
|||
|
(a) |
a + |
(b) |
a + |
|
(c) |
a + |
(d) |
a + |
1 Answer
127 votes
Answer Key / Explanation : (b) -
x=at+bt2−ct3
=a+2bt−3ct2
=2b−6ct
For 
=0 t=+
∴ v=
=a+2b
−3c
⇒ v = 
+
+a = a+
127 votes
Answer Link
127