a) A shirt left on your bedroom floor is still there after 2 days. (Newton's 1 law)
b) You run into your friend while ice-skating, & you both fall in opposite directions. (3rd law)
c) The horse you're riding trips on a tree stump & stops quickly, & you fly forward. (1st law)
d) A baseball...
1. A 45kg sprinter runs at 12 m/s for a short distance. What is his momentum?
2. p=m*v
3. p= (45kg)(12m/s)
p= 540
I'm not sure if I did it right. & am I supposed to include unit(s) after 540? :confused:
I did my work on a paper first, then I posted in here. 'Cause I'm not sure if I did it right or not. & I didn't realized we have too post a solution. Sorry bout that.
1. A car accelerates from a standstill to a speed of 30 m/s in a time of 10 seconds. What is its acceleration?
2. Equation for acceleration: a=(vf-vi)/t
3. a= ? (it asks for acceleration)
vf= 30 m/s
vi= 0 m/s
t= 10s
30 m/s - 0 m/s / 10s = 3
a= 3 m/s^2
I'm not sure if I did...