As shown in the figure, a bullet of mass 0.010 kg moving horizontally suddenly strikes a block of wood of mass 1.5 kg that is suspended as a pendulum. The bullet lodges in the wood, and together they swing upward a vertical distance of 0.40 m. The length of the string is 2.0 m. What was the speed of the bullet just before it struck the wooden block? 
Definitions:
Modern Office Towers
High-rise buildings designed with advanced architectural techniques and technologies to house offices and commercial activities in urban centers.
Thomas Malthus
An English economist and demographer, best known for his theory that population growth will always tend to outrun the food supply.
Famine Relief
Famine relief refers to emergency measures and aid provided to areas or populations suffering from severe food shortages and starvation.
Population Growth
The increase in the number of individuals in a population, often measured as a rate over a specific period.
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