Question

Challenge: a hammer is dropped on planet x. if the hammer has a mass of 3 kg and a weight of 9 n, what is the gravitational acceleration of planet x and is it more or less than that of earth?

Answer 1

To know that we would need to know how long it takes the hammer to drop.

Answer 2

Answer:

Gravitational acceleration at planet x will be $g=3m/sec^2$

Acceleration due to gravity on planet x will be less than acceleration due to gravity on earth

Explanation:

We have given mass of the hammer m = 3 kg

And weight of the hammer at planet x = 9 N

We know that weight of the body is given by $W=mg$

$9=3\times g$

$g=3m/sec^2$

So gravitational acceleration at planet x will be $g=3m/sec^2$

As we know that acceleration due to gravity on earth is $9.8m/sec^2$

So acceleration due to gravity on planet x will be less than acceleration due to gravity on earth