Answer:
See below
Explanation:
Assuming starting from zero velocity
vfinal = at
24 = a (5.5)
a = 4.36 m/s^2 I think part of your question is missing....what was the initial velocity?
Answer:
1.512 m/s
Explanation:
M₁ = 10.5
M₂ = 61.5kg
v₁ = 8.85m/s
v₂ = ?
This question involves conservation of momentum and law of conservation of momentum states that, the total momentum of a system does not change before and after impact and it's always constant.
Momentum = mass * velocity = M*V
total momentum of the system before caught the ball = total momentum after he caught the ball.
M₁V₁ = M₂V₂
10.5 * 8.85 = 61.5 * V₂
V₂ = 92.925 / 61.5
V₂ = 1.5109m/s ≈ 1.512m/s
Answer:
b)
Explanation:
Normal force, is always directed upward the surface over which is placed the object, and can adopt any value, as required to meet Newton's 2nd Law.
In this case, as the external force on the suitcase pulls upward, in order to counteract the influence of gravity, normal force is less than the weight of the suitcase, as follows:
F + Fn = m*g
⇒ Fn = m*g - F
So, the normal force is equal to the magnitude of the weight of the suitcase (m*g) minus the magnitude of the force of the pull (F) which is the same expressed by the statement b.
Sunlight and wind because they never run out
THe loss of 2 protons and 2 neutrons (also called a helium nucleus) is defined as alpha decay.