Answer:
1.53seconds
Explanation:
Using first equation of motion :
V=U + at
Where final velocity (V) =+8.3m/s
Initial velocity (U) =+4.4m/s
Acceleration (a) = 0.65m/s^2
time(s)=?
V=U + at
+8.3^2 = +4.4 + 0.65 * t
Making t the subject of the formula :
Therefore, t= ( +8.3 - 4.4)/0.65 = 1.53seconds
Answer:
5N
Explanation:
Given parameters:
Original length = 22cm
Spring constant, K = 50N/m
New length = 32cm
Unknown
Force applied = ?
Solution:
The force applied on a spring can be derived using the expression below;
Force = KE
k is the spring constant
E is the extension
extension = new length - original length
extension = 32cm - 22cm = 10cm
convert the extension from cm to m;
100cm = 1m;
10cm will give 0.1m
So;
Force = 50N/m x 0.1m = 5N
343.1484 grams. this is your answer.
Answer:
The North Atlantic Treaty or Washington Treaty
Explanation:
The North Atlantic Treaty or Washington Treaty is the treaty that constituted the North Atlantic Treaty Organization (NATO). It was signed in Washington on April 4, 1949.
There it is established that the purpose of NATO is to guarantee the freedom and security of its member countries through political and military means.
Answer
given,
mass of object 1 = 4 Kg
Speed of object 1 = 2 m/s
mass of object 2 = 1 Kg
speed of object 2 = 4 m/s
KE of the object 1 = 
= 
= 8 J
KE of the object 2 =
= 
= 8 J
Kinetic energy of both the object is same hence,Work done by both the object will also be same.
It is given that braking force is same in both cases.
So, distance travel by Both the object will be same.
