Answer:
Mass of raft=m1= 1000kg
Mass of paddle=m2=40kg
Speed of paddle=v2=3 m/s
Speed of raft=recoil speed=v1=?
Formula
V1= -(m2/m1)v2= -(40/1000)3= - 0.12m/s
Explanation:
Here the raft has much greater mass as compare the paddle and its velocity will always be negative due to recoil. 1 and 2 with masses and velocities are subscripts.
0.05*0.2=0.05*0.15+0.015*m2',
m2'=1/6 m/s,
m2'=0.17 m/s
N I C E - D A Y!
Explanation:
We know that :
u = 29 mph = 12.96 m/s
S = 471 ft = 143.5 m
t = 8.5 sec
143.5 = 12.96 * 8.5 + 1/2 * a * 72.25
a = 66.68 / 72.25
a (Acceleration) = 0.92 m/sec^2
= 3.01 ft/sec^2
-- The sun's radius is 10 times the radius of that other one.
-- The sun's surface area is 100 times the surface area of that other one.
- The sun's volume is 1,000 times the volume of that other one.
