a bullet of 10g strikes a sandbag at a speed of 10^3m/s and gets embedded after travelling 5cm Calculate - Science - Motion

Question

a bullet of 10g strikes a sandbag at a speed of 10^3m/s and gets
embedded after travelling 5cm Calculate a) the resistive force
exerted by the sans on the bullet b) the time taken by the bullet
to come to rest

Vara · Accepted Answer

Mass of the bullet:m=10 g   =0
01 kgSpeed:v=1000 m/sDistance:s=0
05 m(a)Resistive force:F=ma  =mv2-u22s  =0
01×0-100022×0
05  =-105 NMagnitude of resistive force=105 N(b)Time taken to come to rest:s=u+v2tt=2su+v =2×0
051000 =10-4 s

a bullet of 10g strikes a sandbag at a speed of 10^3m/s and gets embedded after travelling 5cm. Calculate a) the resistive force exerted by the sans on the bullet b) the time taken by the bullet to come to rest