Question

the displcement of a particle is given byx(t) =5t^2-20t m its instantenous velocity is zero at = ____ seconds​

Answer 1

Answer:

Thus velocity is 0 at t=2 seconds

Step-by-step explanation:

s= x(t)=5t²-20t

Thus velocioty

=ds/dt=10t-20

If vecity is 0

the ds/dt=0

10t-20=0

t=2

Thus velocity is 0 at t=2 second

Answer 2

Answer:

t = 2 sec

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