Which scientist performed an experiment with meat in both covered and uncovered jars to test the theory of spontaneous generation?

francesco redi

explanation:

francesco redi did an experiment with meat and maggots and concluded that maggots do not arise spontaneously from rotting meat. the needham and the spallanzani experiments were additional experiments that were conducted to disprove spontaneous generation.

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