Recent content by kmotoao

  1. K

    Work and kinetic friction problem

    i have two questions that needs help on. thanks in advance 1. You pull a box across the floor with a force of 425 N. The coefficient of kinetic friction is 0.305. The mass of the crate is 125 kg. Angle q = 35.0°. Find: (a) the acceleration of the box and (b) the amount of work done in...
  2. K

    How Is Projectile Motion Calculated in Physics?

    i need help on this problem. thx A 47.0 kg projectile is launched with an initial speed of 72.0 m/s and an angle of 39.8° above the horizontal. The projectile lands on a hillside 7.15 s later. Neglect air friction. (a) What is the projectile’s kinetic energy at the highest point of its...
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