Question

Plz help me finish this worksheet Plz don't answer wrong answer

Answer 1

Answer:

1.momentum(p) = m×v..

2.8:15

3.force = mass × acceleration..

acceleration = velocity/time..

so..force= mass × velocity/ time..

so..force = 70×0.5/5

= 14N

Answer 2

1. momentum= mass× velocity, momentum= mv ,. 2. F=ma , for two cars masses ratio m1/m2= 4/5 , accelration ratio a1/a2= 2/3 then F1/F2=( m1/m2)×(a1/a2), F1/F2= 4×2/5×3, F1/F2= 8/15 ans. 3. mass of ball= 70gm(70×10^-3 kg) , velocity = 0.5m/sec , time=5 sec ,. F= ma , (a=v/t). F= 70×10^-3 ×0.5/5 ,F=0.07×0.1, F= 0.007N ans