The "newton-meter" that is a unit of work or energy
is identical to the Joule.
ANSWER:
F(h)= 230 N is the horizontal force you will need to move the pickup along the same road at the same speed.
STEP-BY-STEP EXPLANATION:
F(h) is Horizontal Force = 200 N
V is Speed = 2.4 m/s
The total weight increase by 42%
coefficient of rolling friction decrease by 19%
Since the velocity is constant so acceleration is zero; a=0
Now the horizontal force required to move the pickup is equal to the frictional force.
F(h) = F(f)
F(h) = mg* u
m is mass
g is gravitational acceleration = 9.8 m/s^2
200 = mg*u
Since weight increases by 42% and friction coefficient decreases by 19%
New weight = 1+0.42 = 1.42 = (1.42*m*g)
New friction coefficient = μ = 1 - 0.19 = 0.81 = 0.81 u
F(h) = (0.81μ) (1.42 m g)
= (0.81) (1.42) (μ m g)
= (0.81) (1.42) (200)
= 230 N
C- Stratus clouds are the rainy clouds.
Hope this helps!
Answer: The buoyant force acting upwards on the crate is smaller than the downward force of gravity on the crate. The crate will sink and accelerate downwards
Explanation:
At any moment, while the crate remains submerged in water, there are two external forces acting on the crate: the gravity force (in this case, 30 N), that aims always downward, and the buoyant force, due to the water removed by the crate while it is being submerged, which is always upwards.
As in this case the buoyant force is smaller than the weight of the crate, there is a net force pointing downward, causing the object to sink and accelerate downwards in order to be compliant with Newton's 2nd Law.
