A0.10- kg ball is thrown straight up into the air with
aninitial speed of 15m/s. find the momentum of the ball (a) at
itsmaximum height and (b) halfway to its maximum height.

(a)0,(b)1.061 kg-m/s

Explanation:

Given

mass of ball is 0.10 kg

Initial speed is 15 m/s

Maximum height reached by ball is h

final velocity =0

thus momentum of ball at maximum height is 0 as velocity is zero

For halfway to maximum height

where

v=10.61 m/s

Thus its momentum is

hi there!

out of the two, (b) precision would be more reasonable.   however, both a and b could be pretty reasonable.

-awesomerepublic   : )

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles