2 Fig. 2.1 shows a skier of mass 85 kg skiing down a very steep slope.
skier
33
BI
Fig. 2.1 (not to scale)
The skier starts from rest at the top T of the slope. The force of gravity accelerates him down the
slope.
When he reaches the bottom B of the slope, his kinetic energy is 5.5 x 104J.
(a) The gravitational field strength is 10 N/kg. Calculate
(i) the weight of the skler,
XION​

radiation

explanation:

heat is transmitted by radiation

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards