Please help.,

Explanation:

in all the question we have to use same technique

in 1 question

weight/force exerted by dorje(F)=1500N

total surface area of sole(A)=0.5m²

we know that,

   P=

or, p=

∴ P=3000pa

in question 2nd

pressure(P)=40 pa

force exerted by block(F)=80N

we know,

pressure(P)=

   area=

∴area =2m

ow you can do other by yourself

the answer is b: 1.4 km/hr

haploid cells;