Mavzu: Impulsning saqlanish qonunini ballistik mayatnik yordamida o’rganish Ishning maqsadi

Ishni bajarish tartibi:

1.1-rasmda ko’rsatilgan qurulmani yig’ing. Uni gorizontal tekislikka o’rnating.

2-rasm: Ballistik mayatnikning ishlash prinsipi (sxemasi)

2.Mayatnik prujinasini cho’zishdan oldin sharchani magnit boltiga mahkamlang. So’ng boltni orqaga qarab torting. Mayatnik tinch holda turganiga va strelkasi “nol” belgini ko’rsatganiga ishonch hosil qiling.

3.So’ng ishchi richakni tortib tepkini qo’yib yuboring. Xuddi shu tartibda tajribani 3-5 marta takrorlang.

4. cosφ va sharchaning v tezligi orasidagi bog’lanish grafigini chizing.

5. Zarb natijasida sharcha olgan boshlang’ich tezlikni va og’ish burchagini yozib olib, natijalarni quyidagi jadvalga kiriting.

T/r	m (kg)	M (kg)	cosφ	r (m)	Ep (J)	Ek (J)	(m/s)	P (kg m/s)	∆P (kg m/s)	%
1
2
3
O’rt. qiymat

Nazorat savollari

1.Ballistik mayatnik deganda nimani tushunasiz?

2.Impuls nima?

3.Impulsning saqlanish qonuniga ta’rif bering va formulasini yozing.

4.Ballistik mayatnikning ishlash prinsipini aytib bering.

5.Sharchaning potensial va kinetik energiyalari qanday formulalar yordamida hisoblanadi?

6.Sharchaning impulsini topish formulasini keltirib chiqaring.