Jerry measures the time it took for a ball dropped from a balcony to hit the ground. His stopwatch reads 2.6 s. How high is the balcony?

33.12m

Explanation:

Given parameters:

Time of fall  = 2.6s

Unknown:

Height of the balcony  = ?

Solution:

To solve this problem; use this expression:

    H  = ut + gt²

u is the initial velocity

t is the time

 g is the acceleration due to gravity  = 9.8m/s²  

 So;

          H  = (0 x 2.6) + ( x 9.8 x 2.6²)  = 33.12m

compass can be used day and night, cloudy or sunny

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.