A 7 kg bicycle moving at 11 m/s strikes a stationary 2000 kg car. The bicycle bounces backwards at 3
m/s. What is the velocity of the car after impact?

1- 0.011 m/s
2- 77 m/s
3- 21 m/s
4- 0.028

1 - wave length

2 - amplitude

3 - crest

4 - trough

explanation:

duh.

would be false hope this out

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