Answer:
B. energy
Explanation:
A vector has direction.
Energy does not have a direction.
Answer:
(1) V = 0.2 J (2) 0.05J
Explanation:
Solution
Given that:
K = 160 N/m
x = 0.05 m
Now,
(1) we solve for the initial potential energy stored
Thus,
V = 1/2 kx² = 0.5 * 160 * (0.05)²
Therefore V = 0.2 J
(2)Now, we solve for how much of the internal energy is produced as the toy springs up to its maximum height.
By using the energy conversion, we have the following
ΔV = mgh
=(0.1/9.8) * 9.8 * 1.5 = 0.15J
The internal energy = 0.2 -0.15
=0.05J
Gravity<span> attracts </span>all objects<span> towards one </span>another<span>.</span>
Answer:
Momentum of mass 
is 83·7 kg m/s towards north
Momentum of mass 
is 38·72 kg m/s towards east
Explanation:
Given
Mass of = 6·2 kg
Mass of = 4·4 kg
Velocity of mass = 
= 13·5 m/s
Velocity of mass = 
= 8·8 m/s
Momentum of mass = × = 6·2 × 13·5 = 83·7 kg m/s
Momentum of mass = × = 4·4 × 8·8 = 38·72 kg m/s
As mass is moving North, the direction of momentum will also be in that direction because the direction of momentum will be in the direction of velocity
As mass is moving East, the direction of momentum will also be in that direction because the direction of momentum will be in the direction of velocity
∴ Momentum of mass is 83·7 kg m/s towards north
∴ Momentum of mass is 38·72 kg m/s towards east
