Question

7 jon minnoch was the heaviest living man before he died in 1983. his mass was 442 kg. how much would he have weighed on... (a) the moon (1.62 m/s²)? a 716.04 n b 272.84 n c 272.84 kg d 716.04 kg (b) earth? (you should know the gravity) a 45.1 n b 4331.6 kg c 4331.6 n d 45.1 kg (c) mars (3.72 m/s²)? a 1644.24 n

Explanation:

Step1: Recall weight - mass formula

Weight $W = mg$, where $m$ is mass and $g$ is gravitational acceleration.

Step2: Calculate weight on the moon

Given $m = 442$ kg and $g_{moon}=1.62$ m/s². Then $W_{moon}=442\times1.62 = 716.04$ N.

Step3: Calculate weight on Earth

The gravitational acceleration on Earth $g_{earth}=9.8$ m/s². So $W_{earth}=442\times9.8=4331.6$ N.

Step4: Calculate weight on Mars

Given $g_{mars}=3.72$ m/s². Then $W_{mars}=442\times3.72 = 1644.24$ N.

Answer:

(a) A. 716.04 N
(b) C. 4331.6 N
(c) A. 1644.24 N