2points
which of the following objects exhibit two-dimensional motion?
check all that apply.
a. an object that's thrown horizontally off a cliff and allowed to fall
o
b. an object thrown upward at an angle
o
c. an object dropped from rest
o
d. an object thrown vertically upward
submit

A. An object that's thrown horizontally off a cliff and allowed to fall

B. An object thrown upward at an angle

Explanation:

An object exhibits a two-dimensional motion if it can be described by both x and y coordinate components.This means you can describe it using a vector with the horizontal and vertical components.For example,a graph of a body that moves with a constant velocity,the sum of the velocities in the x and y directions can describe this object's position.The same with kicking a ball.The ball will rise up at an angle, where you will have the horizontal component in the x-axis direction and the vertical component in the y-axis direction.

So for the case of this question, when an object is thrown horizontally, the horizontal component is initiated which will be represented by the x-axis vector.When it is allowed to fall down, the vertical component is initiated, in this case it will be a negative vector.An object thrown upward at an angle behaves like a ball kicked at an angle.

the answer to this question is 60 n

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle