The horizontal range of a projectile fired at an angle of \(15^\circ\) is \(50~\text m.\) If it is fired with the same speed at an angle of \(45^\circ,\) its range will be:
1. \(60~\text m\)
2. \(71~\text m\)
3. \(100~\text m\)
4. \(141~\text m\) 

Subtopic:  Projectile Motion |
 82%
Level 1: 80%+
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Two particles are projected in the air with speed \(v_0\), at angles \(\theta_1\) and \(\theta_2\) to the horizontal, respectively. If the height reached by the first particle is greater than that of the second, then:

(a) the angle of the projection: \(\theta_1>\theta_2\) 
(b) the time of flight: \(T_1>T_2\)
(c) the horizontal range: \(R_1>R_2\)
(d) the total energy: \(U_1>U_2\)

Choose the correct option:
1. (a), (c), (d)
2. (a), (c)
3. (b), (c), (d)
4. (a), (b)

Subtopic:  Projectile Motion |
 67%
Level 2: 60%+
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