IMAT 2024 · Question 59
HARMONIC MOTIONIMAT 2024 Q591 / 1
A point particle moves along a given x-axis with the law of motion x(t) = 4 cos(ωt) where x is in metres, t in seconds and ω = 2π rad/s. The velocity of the point particle at the instant t* = 1/2 s equals:
A
approximately −4 m/s
B
approximately 4,2 m/s
C
approximately 25,1 m/s
D
approximately 8,5 m/s
E
0 m/s
Keyboard: A–E to choose, Shift + letter to cross out, Enter to confirm.