how far will 490 J raise a block weighing 7 N?
To determine how far 490 J will raise a block weighing 7 N, we need to use the principle of work and energy.
The work done on an object is defined as the product of the force applied on the object and the distance over which the force is applied. Mathematically, work (W) is given by the equation:
W = F * d
where W is the work, F is the force, and d is the distance.
In this case, we are given that the block weighs 7 N and the work done is 490 J. Since work is equal to force multiplied by the distance, we can rearrange the equation to solve for distance:
d = W / F
Plugging in the given values, we have:
d = 490 J / 7 N
Now we can calculate the distance:
d = 70 meters
Therefore, 490 J will raise a block weighing 7 N for a distance of 70 meters.