What is the force needed to lift a 65kg box?

637N

Explanation:

Force needed to lift box = ?

Mass of box = 65kg

Acceleration due to gravity, g = 9.8m/s2

Recall that Force applied depends on the mass of an object moved against gravity.

Thus, Force = Mass x acceleration due to gravity

F = mg

F = 65kg x 9.8m/s2

F = 637N

Thus, 637 newton of force is needed to lift a 65kg box

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min