Question

18.
For a body moving with constant momentum, the parameter which remains constant is
(A) acceleration
(B) velocity
(C) speed
(D) force
স্থির ভরবেগ সম্পন্ন কোন বস্তুর ক্ষেত্রে যে রাশিটি স্থির থাকে তা হল
(A) তরণ
(B) বেগ
(C) দ্রুতি
(D) বল​

Answer 1

Answer:

(B)Velocity

Explanation

momentum is constant

p=mv

mass and velocity constant

ans can't be a)as there is no acceleration ,a=v-u/t,v=u

ans can't be c)as force is dependent on acceleration,therefore there is no force.(force is required to accelerate a body)

Answer 2

Answer:

well i think answer is (a),(b) and (d)

Explanation:

here momentum is constant so velocity must be constant Because

p=m×v

but also is velocity is constant then acceleration and force must also be constant so answer is a,b,d