Ok, so you multiply them so it would be 30x5 so you will get 150.
Answer:
Explanation:
Given that,
Displacement, d = 60 m
Time, t = 12 s
We need to find the acceleration of the runner. Using second equation of motion as follows :
Here, u = 0 (initial velocity = 0)
a is acceleration
So, the acceleration of the runner is .
The answer is 5. To find the advantage you just divide 20 by 4.
The answer is that it is an elastic collision.
<u>Explanation:</u>
When two objects come in direct contact with each other, the collision occurs. It is the event in which two or more bodies exert forces on each other in about a relatively short time.
As a result of a collision, No losses in the kinetic energy.
The formula for an elastic collision of momentum is given by
m1u1 +m2u2 = m1v1 + m2v2
where m1,m2 represents the mass of 1st and 2nd body
u1, u2 represents the initial velocity of the first and second body
v1, v2 represents the final velocity of the first and second bodies.
During a collision, the kinetic energy before the collision will be equal to the kinetic energy after the collision.
Smaller the force, greater the collision acting upon the object.
Work = Force * distance
Work = 40N * 10m
Work = 400N