What is the force of a 20 Kg wagon moving with an acceleration of 2/ms2?

F = 40 [N]

Explanation:

To solve this problem we must use Newton's second law, which tells us that the force applied on a body must be equal to the product of mass by acceleration.

∑F = m*a

where:

F = forces [N]

m = mass = 20 [kg]

a = acceleration = 2 [m/s²]

Now replacing:

answer: a ball

explanation: because it will bounce

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.