Question map
Not attempted Correct Incorrect ★ Bookmarked
Loading…
Q17 (NDA-II/2008) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Basic mechanics concepts Answer Verified

Which one of the following remains constant while throwing a ball upward?

Result
Your answer: —  Â·  Correct: C
Explanation

When a ball is thrown vertically upward, it moves under the sole influence of gravity, assuming air resistance is negligible. According to the principles of vertical projectile motion, the object experiences a constant downward acceleration due to gravity, denoted as g (approximately 9.8 m/s²) [t1][t6]. While the acceleration remains constant in both magnitude and direction throughout the flight [t6][t7], other parameters change. The velocity decreases as the ball rises, momentarily becomes zero at the peak, and then increases as it falls [c1][t6]. Consequently, the kinetic energy (which depends on velocity) also varies, reaching its minimum at the highest point [t1][t3]. Displacement changes continuously as the ball's position relative to the starting point shifts during its ascent [t2][t4]. Therefore, only acceleration remains constant during the upward motion [t6][t8].

Sources

  1. [1] Science ,Class VIII . NCERT(Revised ed 2025) > Chapter 5: Exploring Forces > Activity 5.8: Let us observe > p. 72
How others answered
Each bar shows the % of students who chose that option. Green bar = correct answer, blue outline = your choice.
Community Performance
Out of everyone who attempted this question.
100%
got it right
✓ Thank you! We'll review this.

SIMILAR QUESTIONS

NDA-II · 2025 · Q75 Relevance score: 3.25

Suppose, a ball of mass M is thrown upwards from a point A and it reaches up to the highest point B and returns back to point A, which one among the following is correct ?

CDS-I · 2002 · Q56 Relevance score: 2.90

A person sitting in an open car moving at constant velocity throws a ball vertically upwards in air. If effect of air resistance is neglected, the ball will fall

IAS · 1998 · Q114 Relevance score: 2.30

A ball is dropped from the top of a high building with a constant acceleration of 9.8 m/s2. What will be its velocity after 3 seconds ?

NDA-I · 2022 · Q19 Relevance score: 2.12

A ball is thrown vertically upward with a speed of 40 m/s. The time taken by the ball to reach the maximum height would be approximately

NDA-II · 2016 · Q82 Relevance score: 1.82

Two balls, A and B, are thrown simul¬taneously, A vertically upward with a speed of 20 m/s from the ground and B vertically downward from a height of 40 m with the same speed and along the same line of motion. At what points do the two balls collide by taking acceleration due to gravity as 9-8 m/s*?