Answer: a) 4.15m/s
b) 11.22m/s
c) 14.76m/s
Explanation: d).
Sometimes it is possible to neglect an external impulse if it is not in the direction of interest.
Also, a small force acting over a long time can easily provide more impulse
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The name of that Russian ruler is <span>Ivan IV Vasilyevich or Ivan the Terrible.
The nick name 'terrible' came from his cruel and harsh nature towards all the enemy that he faced.
In the expansion process, he's never had a doubt to killed all the enemies that stand in his way and often use the way of terror to make other kingdom submit.</span>
Contextual
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