6m
a block weighing 400 kg rests on a horizontal surface and supports on top of it,
another block of weight 100 kg as shown the block w, is attached to a vertical wall
by a string 6 m long. find the magnitude of the horizontal force p applied to the
lower block as shown in figure that shall be necessary so that slipping of w, occurs.
smow:
90'

490 n  f=125n a=2.5m/s2

Get from the teacher they will you

Thick and thin filaments

Ek₀ and ep₀ are initial kinetic and potential energies respectively.ek and ep are final kinetic and potential energies respectively.energy in the system is conserved.ek₀ + ep₀ = ek + epassume student is one some ground ground, so ep₀ = 0at the apex of student's swing, ek = 0ek₀ + 0 = 0+ epek₀ = epmv₀²/2 = mghmass cancels outv₀²/2 = ghh = v₀²/(2g)h = (3.5 m/s)²/(2 * 9.81 m/s²)h = 0.62 mhe will swing 0.62 m high (relative to where he was running before)