the normal force is the force applied opposite to the weight
of the was box. So the normal force is equal to the weight of the box = 24 kg
*(9.81 m/s2) = 235.44 N
the acceleration of the box be solve using newtons 2nd
law of motion:
F = ma
a = F/ m = 585 N/ 24 kg = 24.38 m/s2
by energy conservation we know that
KE or rotation + KE of translation = gravitational PE
now we have
also we know that
now we have
now when it is rolling on ground the torque acting on it due to friction force is given by
now angular speed at any time is given as
so above is the angular speed in terms of time "t"
Explanation:
Farmers ' overuse of fertilizers and pesticides to improve crop yields is harmful to the environment and people's health. The use of fertilizers and pesticides has contributed to climate, water, and soil pollution problems. The nitrous oxide (N2O) formed by microbial activity on inorganic soil fertilizers allows ozone layer layer to deplete, and serves as a barrier against damaging UV rays emanating from the light.
Fertilizers that are added to the soil are discharged to rivers and lakes by rainwater which causes water pollution. The trend of marine bodies nitrogen accumulation is known as eutrophication, which deteriorates the quality of the water contributing to fish death.
Answer:
Explanation:
30 rev/min (2π rad/rev) / (60 s/min) = π rad/s
α = Δω/t = (0 - π)/3 = π/3 rad/s²
θ = ½αt² = ½(π/3)3² = 1.5π radians
θ = 1.5π rad/2π rad/rev = 0.75 rev
