I found a similar problem from another website which shows the diagram. This is because we need to compute first the net force to determine the work. Afterwhich, we can use the formula: Work = Force*Distance.
Net Force = 12.2 N - wcosθ
Since the weight is 30 N and the angle is 24°,
Net Force = 12.2 - 30cos24° = -15.2 N
So,
W = (-15.2 N)(3.60 m)
<em>W = -54.7 J</em>
Answer:
1962 W
Explanation:
P = W/t
P = F d cos theta / t
P = (500 kg) (9.81 m/s^2) (10 m) (cos 180) / 25 s <-- the displacement and the force act in opposite directions (but it doesn't matter because direction doesn't matter in this case)
P = 1962 W
Answer: It will amount to 11p after 20 years.
Explanation:
Formula :
Simple interest = Principal x rate x Time (i)
Amount = Principal + Interest
Amount = Principal + Principal x rate x Time
Amount = Principal (1+ rate x Time) (ii)
Given: Principal = p
After 1 year , amount = 1.5p
After 3 years , amount = 2.5p
From (ii)
Amount after 20 years = p(1+ 0.5 x 20) = p(1+10)=11p
It will amount to 11p after 20 years.
Answer:
true
Explanation:
Area = πr²
Differentiating in respect to r
we get,
dA/dr = 2πr
using chain rule,
since r = 4feet
so ,
2π(4) = 8π
I dont get what you are asking. Is this true or false? or do you want me to give you an answer?
