Egbert is in a rowboat four miles from the nearest point on egbert a straight shoreline. he wishes to reach a house 12 miles farther down the shore. if egbert can row at a rate of 3 mi/hr and walk at a rate of 4 mi/hr, find the least amount of time required to reach the house. how far from the house should he land the rowboat? justify your answer.

Explanation:

Given:

For the least amount of time to reach the house one must row at the nearest point on the shore and then walk from there.

Now the time taken to reach the shore:

Time taken in walking to house from the shore:

Therefore total time taken:

it doesn't. it was imagined up in the middle ages.

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