জড়তার সূত্র নিউটনের কোন সূত্র? 

বলের মাত্রার সমীকরণ কোনটি?

A race car has a mass of 710 kg. It starts from rest and travels 40.0m in 3.0 s. The car is uniformly accelerated during the entire time. What net force is exerted on it?

An express train is moving with a velocity $\mathbf { V } _ { 1 }$ Its driver finds another train is moving on the same track in the same direction with velocity $v _ { 2 }$ s. To escape collision. driver applies retardation a on the train. The minimum time of escaping collision will be ;

In the figure, at the free end of the light string, a force $F$ is applied to keep the suspended mass of $18$\mathrm { kg }\( at rest. Assuming