The greater mass of an objectWhich is the greater amount of force needed to accelerate the object 

Mass is inversely proportional to acceleration. The greater the mass, the smaller the accelaration.

Explanation:

(First of all, what?)

According to classical mechanics, F=ma where F is the force, m is the mass of the object and a is it's acceleration. Rearranging, we get F/m=a

thats how its supposed to be

warm front forms when a moist, warm air mass slides up and over a cold air mass. as the warm air mass rises, it condenses into a broad area of clouds. a warm front brings gentle rain or light snow, followed by warmer, milder weather.

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