The diagram shows a ramp in the form of a triangular prism. The cross-section is a right-angled triangle of length 5 m and height 2 m

(a) Find the value of x
Give your answer correct to 1 decimal place.
b) find the area of cross-section
c) the ramp is 10m Long Calcul
ate the volume of the ramp.
d) Calculate the total surface of all five faces of the ramp. ​

answer: b.

explanation:

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s

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