HELP ME A pine-cone at rest falls from a tree. The pine-cone hits the ground with a velocity of 14.7 m/s. How long did it take the pine- cone to land on the ground? (Remember: The acceleration due to gravity on Earth is 9.8 m/s2.) kimberly 15 ૬ treafone
O 1.2 s
O 1.5 s
0.67 s​

talk back to him about the sport and show him your expertise or leave the room

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