Which is the best example of forces acting in the same direction? a boy lifting his chest off the ground during a pushup. two football players pushing a tackling sled. a person pulling out a garden hose from its reel.
First discovery - Herto, Ethopia. 160,000 years ago - 40,000 years earlier than the previous oldest remains homo sapiens.
If the truck moves at same speed but twice as much mass, its momentum is increased twice.
Answer:
Explanation:
Momentum is defined as the force experienced by any object for a given time. In other words, it is the measure of the mass and velocity required for a certain motion. So it is determined as the product of mass and velocity of any object.
Momentum = Mass × Velocity.
As momentum is directly proportional to both mass and velocity, increase in any one of these two quantities keeping the other constant will lead to increase in the momentum.
So in the present case, it is stated as speed is kept constant and the mass is increased twice, then the momentum will also increase twice.
New momentum = 2 ×mass × velocity = 2 × old momentum
If the truck moves at same speed but twice as much mass, its momentum is increased twice.
<span>the picture bellow gives you all the answers, this picture was given to my class by my science teacher a few years ago so it is accurate
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The conversion factor you use is 100 cm = 1 m.
You can divide 20 by 100 to get the answer.
20 cm/100 cm =.2 m
Hope this helped!
