Question

Please answer these questions

Answer 1

Answer:

1. 9.8m/s^2

2. 50m ( option a)

explanation:

1. w=mg , m=w/g , m=200/9.8

F=ma , a = F/m

since the force acquired is, 400-200

= 200N

a = 200/200/9.8

= 9.8m/s^2

2. F = (6i+8j) find magnitude

F = 10 N

F = ma , a = F/m , a= 10/10 , = 1ms^-2

apply in , v^2 = u^2 + 2as

since v = at , v = 1×10 , = 10 ms^-1

so , (10^2) = (0^2)+2(1)s since it is at rest first u=0

100 = 2s

s = 50 m

hope it helps u