Example What are the x- and y-components of vector in the Figure below?
(a)The magnitude of the vector is 3 m, and the angle a =
(b) The magnitude of the vector is 4.5 m, and the angle ß = 37°
(a)
(b)
45°
D. (+)
E, (+)
ar
E
D(-)
D
Op = (360° - a)= (360° – 45°) = 315°
Ce = (90°-B) = (90° - 37°) = 53°

Ablock of mass m slides on a horizontal frictionless table with an initial speed v0 . it then compresses a spring of force constant k and is brought to rest. the acceleration of gravity is 9.8 m/s2. how much is the spring compressed x from its natural length? 1) x = v0*sqrt(k/(mg)) 2) x=v0*sqrt(m/k) 3) x=v0*((mk)/g) 4) x=v0*sqrt(k/m) 5) x=v0*(m/kg) 6) x=v0*sqrt((mg)/k) 7) x=(v0)^2/(2g) 8) x=v0*(k/(mg)) 9) x=(v0)^2/(2m) 10) x=v0*((mg)/k)