a particle moves along a straight line with equation of motion s=f(t), where s i
ID: 2871569 • Letter: A
Question
a particle moves along a straight line with equation of motion s=f(t), where s is measured in meters and t in seconds. find the velocity and the speed when t=5.F(t)=20t-8t^2
Velocity= Speed= a particle moves along a straight line with equation of motion s=f(t), where s is measured in meters and t in seconds. find the velocity and the speed when t=5.
F(t)=20t-8t^2
Velocity= Speed= a particle moves along a straight line with equation of motion s=f(t), where s is measured in meters and t in seconds. find the velocity and the speed when t=5.
F(t)=20t-8t^2
Velocity= Speed=
Explanation / Answer
f(t)=20t-8t^2
Velocity=df/dt =20-16t
at t=5 ==>Velocity =20-16*5 ==>20-80=-60m/s
Speed=60m/s