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Projectiles - Jamb Physics Past Questions and Answers

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Jamb Physics Past Questions

Jamb Past Questions and Answers on Projectiles

Question 1:


If the time of flight is 96seconds, calculate the horizontal range through the point of projection.

A. 84400m
B. 69000m
C. 61440m
D. 24000m


Question 2:


An air force jet flying with a speed of 335ms-1 went past an anti-aircraft gun. How far is the aircraft 5s later when the gun was fired?

A. 838m
B. 3350m
C. 670m
D. 1675m
E. 67m


Question 3:


A rocket burns 0.01kg of fuel each second and ejects it as a gas with a velocity of 5,000m/s. What force does the gas exert on the rocket?

A. 500,000N
B. 500N
C. 50N
D. 5,000N
E. 50,000N


Question 4:


A gun of mass 2.0kg fires a bullet of mass 16 x 10 -2kg due East. If the bullet leaves the nozzle of the gun with a velocity of 150ms-1, what is the recoil velocity of the gun?

A. 150ms-1 due West
B. 1.2 x 10-4ms-1 due West
C. 1.2ms-1 due West
D. 1.2ms-1 due East
E. 150ms-1 due East


Question 5:


A ball is thrown vertically into the air with an initial velocity u. What is the greatest height reached?

A. U2g
B. \(\frac{3u^2}{2g}\)
C. \(\frac{u^2}{g}\)
D. \(\frac{u^2}{2g}\)






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