Question

Bullet moving with a velocity of hundred metre per second the strike wooden plank after passing through the plank of 1 metre length its velocity reduced to 50 metres per second. calculate the average retardation of the bullet while passing through the plank.how much time it take to reach the other end of the plank​

Answer 1

Answer:

$equation of motion can be be applied:v 2 =u 2 +2as, where acceleration is -ve.Hence v 2 =u 2 –2as.v(final velocity) = 0. Therefore, u 2 =2as.i.e. s is proportional to u 2 = s 2​ s 1​ ​ = u 22​ u 12​ ​ Therefore, s 2​ = u 12​ u 22​ ​ ×s 1​ = 100 2 200 2 ​ ×2(planks)=8planks$

Explanation:

Answer 2

Answer:

AMPLITUDE -- THE MAXIMUM DISPLACEMENT OF A VIBRATING OBJECT FROM ITS CENTRAL POSITION.....

Frequency -- the number of oscillation per second........

Time period.-- the time taken by A vibrating ( oscillating ) object to complete one vibration....

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