An object of mass 50 kg has an initial velocity of $10 m / s$ . A force is applied on the object producing an acceleration of $2~ m/ $s^2$$ . what is the force applied on the object?

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An object gets the velocity of 10 m/s after applying a force of 500N for 5 second. If the mass of the object is equal to 1000 kg, what was its velocity before applying the force?

The correct option is A 7.5 m/sGiven : m=1000 kg F=500 N v=10 m/s t=5 sAcceleration of the vehicle a=Fm=5001000=0.5 m/s2Using v=u+at∴ 10=u+0.5×5 ⟹u=7.5 m/s

An object gets the velocity of $10 m / s$ after applying a force of $500 N$ for $5$ second. If the mass of the object is equal to $1000 k g$ , what was its velocity before applying the force?

The correct option is A $7.5 m / s$
Given : $m = 1000$ kg $F = 500$ N $v = 10$ m/s $t = 5$ s
Acceleration of the vehicle $a = \frac{F}{m} = \frac{500}{1000} = 0.5$ $m / s^{2}$
Using $v = u + a t$
$∴$ $10 = u + 0.5 \times 5$ $⟹ u = 7.5$ m/s