Answer:
6 m/s
Explanation:
mass of moving car m1=5000 kg
initial velocity of moving car vi1=?
mass of car at rest = m2=10000 kg
initial velocity of car at rest = vi2=0
final velcoities of both cars after collision = vf1=vf2= 2m/s
using conservation of momentum rule
m1vi1+m2vi2=m1vf1+m2vf2
putting values
==> 5000 × vi1 + 1000 × 0 = 5000 × 2 + 10000 × 2
==> 5000 ×vi1 = 2 × 15000
==> vi1 = 2 × 15000 ÷ 5000
==> vi1= 2×3=6 m/s
Answer:
C. It helps scientists detect dark matter.
Explanation:
I got a 100% on my test. hope it help and I hope your having an awesome day :)
Answer:
An object that is moving wants to stay moving in a straight line. It takes an outside force acting upon it to change its direction or cause an acceleration.
Explanation:
Answer:
accuracy refers to the deviation of a measurement from a standard or true value of the quantity being measured
