1 A constant force FN acts on a particle of mass 4kg for 5 seconds. The particle was initially at rest, and after 5 seconds it has velocity 6i - 8jms-1". Find F.

answer: 48

just remember to use pemdas:

parentheses

expressions

multiplication

division

addition

subtraction

i use my brain for prombles like this maybe you could try it

step-by-step explanation:

step-by-step explanation:   divide the numerator by the denominator to get the decimal

it would still be 193

if divide by 100 then 1.93

i am not sure

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92