Question

you crumple up two pieces of paper and throw one piece with a horizontal velocity of 2.2 m/s. at the same time, a friend releases the other piece from rest. both pieces start at 1.5 m from the floor. how long does it take each piece of paper to hit the ground

Answer 1

Both pieces of paper take approximately 0.55 seconds to hit the ground when dropped from a height of 1.5 meters, regardless of horizontal velocity of one piece, because gravity affects only vertical motion.

Step-by-step explanation:

When crumpling and throwing two pieces of paper from a height of 1.5 meters, the only factor that affects how long each piece takes to hit the ground is gravity. Regardless of whether one piece is thrown horizontally at 2.2 m/s, the time it takes for both pieces to reach the ground is the same since only the vertical motion is affected by gravity. To calculate the time, we use the equation t = √(2h/g), where h is the height (1.5 m) and g is the acceleration due to gravity (approximately 9.8 m/s²).

Using this equation, we find the time t = √(2*1.5/9.8), which equals approximately 0.5537 seconds when rounded.

Therefore, both pieces take approximately 0.55 seconds to hit the ground.

Answer 2

1.5÷2.2

=0.68s

Step-by-step explanation:

considering no air resistance act on the papers