0
191 UNITED NATIONS MEMBER STATES
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
What is the average force on a 75 kg crash test dummy that crashes into a wall at 25 m per s and is brought to rest in 1s?
Let's use a combination of two equations F= ma and v= u + at where F= Force; m= mass; a= acceleration; v = final velocity= 0 m/s; u= initial velocity=25 m/s and t= time. From the equation v= u + at, we can solve for a. So, a = (v-u)/ t. Using F= ma F= m((v- u)/t)) F= 75kg((0-25 m/s)/ ls) F= (75 x 25) kg m/s^2 F= 1875 kg m/s^2= 1875 N
For how long should a force of 100 N act on a body of 20 kg so that it acquires a velocity of 200 ms?
u= 0 m/s v= 200 m/s m= 20 kg F= 100 N F= (mv - mu)/t 100 = (20*200 - 20*0)/t 100 = 4000/t t= 4000/100 t= 40 s hope it helps cheers ^_^
How would you calculate acceleration?
First of all please spell 'calculating' correctly, NOT 'caculating'. Equation for acceleration. Acceleration = ( change in velocity) divided by time. This can be further expressed as acceleration = ( final velocity - initial velocity) / time Algebraically this can be written as a = (v - u) / t The metric units are a(m/s^2) = (v(m/s) - u(m/s) / t(s)
What is the elastic potential energy of a compressed spring when k is 17.7 newtons per centimeter and x is 19.0 centimeters?
U=1/2kx^2 = (1/2)(17.7N/cm)(19.0cm)^2 = 3194.85 N*cm = 3.195 N*m = 3.20 Joules
What is the importance and history of science and technology?
history-so people do not make the same mistakes as done in the past science/tech.-to gain more info about the past or create things that provide infoscience and technology is NONE OF YOR B-U-S-I-N-E-S-S!!!!!!!!!!
How do you spell businessman?
B-u-s-i-n-e-s-s-m-a-n
How many words can you make with a e y o u g m n r s t?
Words you can make with a e y o u g m n r s t --ageamanareasatateeatgategeargogoesgonegoutguestgumgutgutsmanmanymatemaymenmoanmoneymoremorguemornmostmountmournmousemousymugmugsmustmustynastynearnestnetnutnutsnormrangratrayrestroastrougerouterugrumrungsagsatsayseatsetsoarsoresourstarstarestaystoragestorestormstormysureteateartearytoetonetonguetoretorntourtoytrimtrimstuneyeastyeomanyogurtyouyoungyouryoursa e y o u g m n r s t
How do you spell sewnami?
t s u n a m itsunami
What words do these letters spell m i s s l o u i s e m c n a u g h t?
Miss Louise McNaught
Can someone tell me what the best site is out there right now?
h t t p s : / / y a z i n g . c o m / d e a l s / b l u e h o s t / m a d i s o n a m u l l i n s
What is 'anonymous' when translated from English to Italian?
a-n-o-n-y-m-o-u-s
What word can be formed using the letters m s u n a?
Sunam
Do you spell numbers?
N - U - M - B - E - R - S.
Who is going to replace sunmi?
hye rim! :S is going to replace S U N M I!
What sentence can i make from m v e m j s u n p letters?
something
What words you can make from n r m o u s o?
Surmoon
What letter comes next in this letter sequence m v e m j s?
u n p
