1) Un móvil viaja a 40 km/h y comienza a reducir su velocidad a partir del instante t=0. Al cabo de 6 segundos se detiene completamente.

Explain why the aperture of the spherical mirror should be small compared to the radius of curvature of the mirror.

What determines the amount of inertia an object has

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)