A bullet of mass 50g is moving with a velocity of 500m/s.It penetrates a 10cm into a still target and comes to rest. Calculate the kinetic energy possessed by the bullet and the retarding force offered by the target

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Solution

Dear Student,

Mass = 50 g = 0.05 kg
Velocity = 500m/s

v = 0
u = 500m/s
t = sec
v = u + a t
0 = 500 + a1
a= -500
Force = mass accelaration
= 0.05 * -500
= -25 N ( Minus sign indicates force is acting against the direction of motion.)

Regards.

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A bullet of mass 50g is moving with a velocity of 500m/s.It penetrates a 10cm into a still target and comes to rest. Calculate the kinetic energy possessed by the bullet and the retarding force offered by the target

Dear Student, Mass = 50 g = 0.05 kg Velocity = 500m/s ​v = 0 u = 500m/s t = sec v = u + a t 0 = 500 + a*1 a= -500 Force = mass * accelaration = 0.05 * -500 = -25 N ( Minus sign indicates force is acting against the direction of motion.) Regards.

Dear Student,

Mass = 50 g = 0.05 kg
Velocity = 500m/s

v = 0
u = 500m/s
t = sec
v = u + a t
0 = 500 + a1
a= -500
Force = mass accelaration
= 0.05 * -500
= -25 N ( Minus sign indicates force is acting against the direction of motion.)

Regards.